Product features: Anti-loosening and anti-slip: The working principle of the double-sided embossed gasket is to use the tension generated by the rebound of the product after being subjected to force to play the role of anti-loosening and anti-slip. This gasket provides unique performance through the toothed surface, thereby increasing the safety of the connection. Diversity: Double-sided embossed gaskets have a variety of specifications and sizes for customers to choose from, which can meet the needs of different occasions. At the same time, manufacturers can also customize according to the specific requirements of customers. Material and quality: The material of the double-sided embossed gasket is usually made of high-quality spring steel 65Mn, and some products are also made of stainless steel to adapt to different working environments and requirements.
ASTM B117 chamber JOEO dust sand test chamber dust proof chamber is made for the simulation of dust and sand conditions. These sand and dust chamber used to test the exposure of test the exposure of automotive and electronic components under extreme environmental conditions in order to validate product seal.Dust ingress test methods included IEC60529, ISO20653 and many others. The airflow circulates upward from the bottom, blowing the dust circulation,forcing dust around the specimens. All models are upgrade to programmable controller and Ethernet access that provides simple operation and control. Blowing sand and dust test chamber door attached to the window, the door to the lower part of the electrical control area,Simulated sand dust of talc in the lower hopper of the test chamber. Use the of circulating fan and automatic jar will be blown into the upper network studio talcum powder through a 75 micron square hole,The test space form high density dust shape, test specimen.
1500VDC PV4.0 Cable Connector Product Specifications: Insulation material: PPE/PA; Safety degree: II; Rated voltage: 1500VDC; Flame class: UL94-V0; Rated Impulse voltage: 12KV; Installation type: Outdoor,UV resistant(F1); Test voltage: 8kV(50Hz,1min); Ambient temperature range: -40~+85; Contact resistance: Suitable cable cross sections:1.5~10mm2/16~8AWG; Contact material: Copper,Tin plated; Connecting system: Crimp connection; Degree of protection: IP68(1m,1H); Nut cap locking force: 1.5-1.8Nm; Overvoltage category/Pollution degree: CATIII/2; Upper limiting temperature: 110 (IEC); Regulatory approval: TUV/CE(IEC62852:2014).
1500VDC PV4.0 Cable Connector Product Specifications: Insulation material: PPE/PA; Safety degree: II; Rated voltage: 1500VDC; Flame class: UL94-V0; Rated Impulse voltage: 12KV; Installation type: Outdoor,UV resistant(F1); Test voltage: 8kV(50Hz,1min); Ambient temperature range: -40~+85; Contact resistance: 0.25; Suitable cable cross sections:1.5~10mm2/16~8AWG; Contact material: Copper,Tin plated; Connecting system: Crimp connection; Degree of protection: IP68(1m,1H); Nut cap locking force: 1.5-1.8Nm; Overvoltage category/Pollution degree: CATIII/2; Upper limiting temperature: 110 (IEC); Regulatory approval: TUV/CE(IEC62852:2014).
We Sofar International are manufacturing all kind of Leather Wallets, Leather Badge Holder Wallet, Leather Badge Case, Badge Holder Clip, Neck Chain Badge Holders, ID Card Holder, Passport Holder, Police Wallets, Leather Lanyard, Slash Glove, Cut Resistance Glove, T-Shirt, Uniforms & Uniform Accessories. We have cutouts of USA, Canada, France, Germany, Switzerland, Norway, Poland, Denmark, Sweden, Netherlands Police, Security Department, Navy, Air Force, Private Agencies All Law Enforcement & Fire Services. For more details please contact us. MOQ Acceptable Door to Door Delivery (72 Hours) Sampling free of cost with 4 working days Prompt Service & at Competitive Rate Embossing, Engraving, Etching & Printing as per Client's requirement 100% Genuine Leather -
Pot magnets are steel housed permanent magnets,also called cup magnets,which are very useful permanent magnets assemblies, they are results of the development of magnets application, and play important roles in daily life. The most common cup magnets are ceramic cup magnets and neodymium cup magnets.They can be used as holding magnets,mounting magnets or magnetic holders, for example, some supermarket use ferrite pot magnets to hold product information board. Because of the usage and special structure, ferrite pot magnets also called as ferrite cup magnets, ferrite magnetic pots and ferrite magnetic chucks. The ferrite permanent magnets are fixed into the steel cups by glue, the steel cups cover the ferrite magnets and protect the ferrite magnets well. With the steel cup covered, the steel cups can transfer the magnetic line and make it into a magnetic circle. By this, the steel cup strengthens the magnets with more magnetic force, the magnetic strength of the ferrite magnet is more powerful.Then the magnetic strength of whole magnet assembly is much more than equivalent round magnets.The two parts combine and form a new magnetic system, which called ferrite pot magnets. With more powerful magnetism, the whole magnetic system can hold more weight than just magnets not fixed into the steel cups. Our comapny, an experienced ferrite pot magnets supplier and manufacturer in China, we not only supply standard ferrite pot magnets types, but also make other customized types ferrite cup magnets. Our standard types of ferrite pot magnets for sale are all made from high-performance ferrite magnets, which have higher magnetic performance. Compared with NdFeB pot magnets, ferrite/ceramic pot magnets have weaker magnetic force, but it can resistant higher temperature, and the price is cheaper than NdFeB pot magnets. If you are looking for reliable ferrite pot magnets manufacturer, please feel free to contact us.
Rubber Coated Mounting Magnets With Internal Threaded Bushing The rubber-coated mounting magnets with internal(female) threaded stem/bushing(shorted as internal thread rubber-coated mounting magnets) offer magnetic bases for waterproof magnetic ceiling hooks and rustproof holding magnets for outdoor use. All the internal thread rubber-coated mounting magnets are made with N35 neodymium material, which produces the strongest strength. For different applications, you can screw different threaded hooks and lifting rings into the internal thread post. The Uses Of Internal threaded bushing magnets: Internal thread rubber-coated mounting magnets are used for various ceiling lamp mounting and holding. Rubber-coated mounting magnets with internally threaded bushing are used for fixing and mounting automobile advertisements, lightboxes, and speakers. Rubber-coated mounting magnets with female threaded stems are used for the installation and fixation of industrial tooling and factory equipment. The Characteristics Of Internal threaded rubber bushing Magnets: 1, Multipole magnetic circuit design to strengthen the magnetic force of the round magnetic bases 2, Waterproof and corrosion-resistant outside coat, which extended the service life of the rubber-coated neodymium mounting magnets. 3, Variable size for the round base and threaded hole, which give different holding forces to the rubber-coated mounting magnets. 4, Different hooks and ring fasteners can be used, which make the rubber-coated magnetic base suite for different applications of holding, clamping, and mounting. If you are looking for a reliable magnets manufacturer, don't hesitate to contact us!
As a professional industrial centrifuge suppliers, Saideli provides high-quality lab centrifuge and industrial centrifuge machine with a larger model. And has been widely used in many industries such as the pharmaceutical, chemical and foodstuff industries. The industrial centrifuge machine has high production capacity, low energy consumption and compact structure as well as a high automation degree. TYPES OF INDUSTRIAL CENTRIFUGE FOR SALE There are several types of centrifuge machine industrial for sale, including horizontal centrifuge, vertical centrifuge, top suspended centrfuge. 01 Horizontal Centrifuge This industrial scale centrifuge adopts speed regulation by frequency convertor and PLC control. Adopt whole sealing explosion-proof structure, the centrifuge and meet the demand of GMP Norm of pharmaceutical industry and solid-liquid separation of flammable and explosive products. With absolute isolation between power area and process area. It is suitable for occasion when customer requires high-quality cleaning to avoid the contamination to product. Perfect CIP system can be carried out to wash the internal parts of centrifuge to avoid cross contamination, which are not easy to clean. The automatic residual cakes removing device is optional(have owned the national patent). HOW DOES SAIDELI'S INDUSTRIAL SCALE CENTRIFUGE WORK? Saideli's industrial scale centrifuge works by using centrifugal force to separate solids and liquids. The mixed suspension to be separated is fed into the centrifuge, which spins rapidly around a central shaft. The spinning motion creates a strong centrifugal force that causes the solids to settle to the filter cloth installed inside the centrifuge. The separated solids are then discharged through an outlet, while the clarified liquid is discharged through a separate outlet. The industrial centrifuge for sale can be used in various industries such as wastewater treatment, food processing, and chemical manufacturing for separating solids and liquids or for clarifying liquids.
JOEO high temperature blast vacuum dry oven adopts imported multiple high-power fans and double air duct heat circulation system, and the stainless steel high temperature electric heater is circulated through the wind to quickly heat the working room. The studio adopts mirror stainless steel and super thermal insulation high-quality cotton, which can make the temperature of the box reach a high temperature of 500â??. JOEO high temperature vacuum oven,air drying oven,high temperature industrial oven is widely used in high temperature drying special materials, workpiece heating installation, material high temperature test, reaction treatment of chemical raw materials, Suitable for all kinds of products or materials and electrical, instruments, meters, components, electronics, electrical and automotive, aviation, communications, plastics, machinery, chemical, food, chemicals, hardware tools under constant temperature environmental conditions for drying and various constant temperature adaptability tests.
Inline X Ray Inspection Machine for Stacking Battery Seamarkzm has 1 model which is an inline winding battery x-ray inspection machine, it is XB7200. Inline winding battery x-ray inspection is widely used in different kinds of stacking batteries. XB7200 achieves fully automatic inline inspection of multi-layer stacking power batteries, using TDI line scanning image technology or using area array image acquisition technology. The inspection contents include: weighing, angle overhang, large folds, tab creases, etc. Inline x ray machine is typically used in the full automatic lithium battery production line. And the stacking batteries are widely used in the new energy car industry. Which can provide good judgment for the battery quality. Stacking Inline X Ray Inspection Machine Types XB7200-Stacking Battery Inspection Full Auto Series XB7200 achieves fully automatic inline inspection of multi-layer stacking power batteries. Why Is Stacking Inline Inspection Important? Control the Quality An inline X-ray battery inspection machine is typically used in the production line. It can easily sort out defective products during the production process, prompting companies to improve their processes. High Efficiency Fully automated inspection can accurately and efficiently control production quality, saving labor and time. Save Cost Defective products can be effectively prevented from entering the circulation process and the company's after-sales costs can be reduced. At the same time, the fully automated production line can effectively save labor. How Does Stacking Battery Inline Inspection Machine Handle Different Product Shapes And Sizes? Stacking Inline Inspection Machine Real time x ray machines handle diverse product shapes and sizes by employing adjustable loading plates for standard items and customized fixtures for irregular shapes. These fixtures secure products during inspection, ensuring accuracy. Advanced software algorithms optimize imaging parameters, guaranteeing clear results for various configurations. This adaptability enhances efficiency and precision in the inspection process, accommodating the unique requirements of different products. FAQs of Stacking Inline Inspection Machine � Can the machine be integrated seamlessly into existing production lines or quality control processes? The inline machine can be used in the full automatic lithium battery production line. What industries benefit the most from SEAMARK's Online X Ray Machine? Various kinds of lithium battery manufacturing enterprises have adopted our machine, and it helps their production a lot.
DSBR AUTOMOTIVE BEARINGS USED IN CAR MARKET Automotive bearings are vital for smooth vehicle operation in the car market. They reduce friction, enhancing fuel efficiency and performance. Regular maintenance of wheel bearings ensures safety and longevity. Faulty new bearings for car can lead to severe car accidents, emphasizing their importance. The Importance of Automotive Bearings in Car Performance î?? 1 Car tire ball bearings play a crucial role in car performance by ensuring smooth and frictionless wheel rotation. 2 They contribute to fuel efficiency by reducing friction, thus enhancing the overall performance of the vehicle. 3 Proper maintenance of wheel bearings can significantly extend the lifespan of a car, ensuring optimal performance over time. 4 A faulty wheel bearing for my car can lead to unstable driving and potential accidents, highlighting their critical role in maintaining car safety. HOW AUTOMOTIVE BEARINGS AFFECT CAR EFFICIENCY Automotive wheel bearings play a pivotal role in enhancing car efficiency. They ensure smooth wheel rotation, reducing friction and thereby improving fuel efficiency. A well-maintained wheel car centre bearing can significantly boost a carâ??s performance, making the ride smoother and more enjoyable. Conversely, a faulty or worn-out bearing can lead to increased fuel consumption, unstable driving, and even potential accidents. Therefore, regular inspection and timely replacement of a new wheel bearing are crucial for maintaining optimal car efficiency and safety.
Rare earth samarium cobalt magnets, shorted as SmCo rectangular magnet, are a type of powerful permanent magnet made from the basic elements samarium and cobalt and other metal rare earth materials by mixing, melting, grinding, pressing and sintering. They come in various sizes and shapes, like disc,bar, ring, arc,block, etc.,. Similar to neodymium strong magnets, they belong to the rare earth magnet category, and tcan be classified as SmCo5 and Sm2Co17 according the composition ratios of samarium and cobalt. In comparison to neodymium rare earth magnets, although samarium cobalt magnets may not have as strong magnetic force, they possess two distinct advantages. Firstly, they operate effectively within a higher temperature range, and secondly, they exhibit greater resistance to corrosion. Due to these characteristics, large smco block magnets are commonly employed in applications that demand high operating temperatures, such as generators, pump couplings, sensors, electric motors, marine applications, as well as in the automotive, racing, aerospace, military, and food and manufacturing industries. SmCo rare earth magnets not only perform well at high temperatures but also maintain their magnetic properties even in temperatures below absolute zero (-273 degrees Celsius), making them popular for use in low-temperature applications.
Introduce: Bridge Crane When you choose JULI as your bridge crane manufacturer, you can trust us to deliver reliable, efficient, and cost-effective solutions that meet your needs and exceed your expectations. Bridge crane manufacturer-JULI: Product category: This crane includes box-type bridge, large cart traveling mechanism, small cart and electrical equipment. This series of cranes adopt advanced electromotor, speed reduction gear and brake, which are produced by specialised manufacturers, as a result of which made standardization and generalization of all parts. Usage: JLQ-10 Series Bridge Crane with Hook is widely used in factories, workshop and warehouse, etc, for the general loading, unloading, lifting and transportation indoor or outdoor fixed span. To guarantee safety, lifting mechanism is equipped with weight limiter and height limiter. Travelling mechanism uses polyurethane buffer with long stroke and small buffer force. Driver's cab is comfortable with broad vision. which makes the operation of the crane easier. The crane is equipped with maintenance suspending cage, convenient for the maintenance of large cart integrator.
Model no: tms-m100kp Dimension: 100x100mm Description: Main features: V high-quality vandal proof ip65 stainless steel keypad with 16 keys(12 numeric keys and 4 functional keys) with etched and colored graphics V resistant to dirt, dust and liquid and very rugged vandal proof design V external 2 linesx 4 function keys for option (4 keys per function keypad) V customized layouts available V lifespan:>1 million operations per key V key trip:0.45mm V it can be encrypted with des and 3des V ps/2, usb and rs232 interface V key activation force:250g V easy integration Dimension: V front panel: 100x100mm Environment: V operating temperature: -10¡ãc to+50¡ãc V storage temperature: -30¡ãc to +80¡ãc V relative humidity: 30%¡«95% V keypad is watertight when mounted correctly Electrical data: V power supply voltage: dc 5 v ¡à5% V electric current: :10 ma V emc compliant. V en55022: 2006+a2:2010 V en55024: 1998+a1:2001+a2:2003 Each unit is packed in well-formatted foam and exported standard carton
Keyto's micro solenoid valves are developed, produced and saled by ourselves and we have 10+ mature application experience. Product structure contains roker isolated structure, direct-acting isolated structure, plunger isolated structure... The diameter of micro solenoid pump: 0.8mm, 1mm, 1.5mm, 1.6mm, 2mm, 2.5mm, 3mm, 4mm, 4.5mm are optional. The fluid wetted material: EPDM, FKM, ETP, FFKM, POM, PPS, PEEK, PVDF, PTFE are optional. The installation of medical solenoid valve : barbed type (can connect directly with your tube), base mounted type (can integrated with your manifold), threaded type ( 1/4-28UNF, M6, G1/8 thread)... Keyto also can provide customized designs for our clients to meet your specific application requirements, such as valve group and valve manifold. Please feel free to contact us for more information! Factors Affect Solenoid Valve Operation î?§ Electrical solenoid is acutated by elctrical magnetic Driven from Cooper wirw coil then the applied temperature and voltage are critical. Solenoids can be compatible with both gas and liquid Keyto solenoids can be compatible with both gas and liquid, therefore to provide the interface between liquid and gas will be very important for Keyto team to make recommendations. î?? Keyto have both on/off and proportional solutions Keyto have both on/off and proportional solutions for customer application in life science, In Vitro Diagnostic and Industry field. How Does a Micro Solenoid Valve Work? Keyto small solenoid valve is divided into three categories from the principle: direct-acting, rocker type, and diaphragm type. And from the difference in valve structure and material and the direction of the difference is divided into six sub-categories: direct-acting diaphragm structure, rocker type structure, and grouping diaphragm type structure. The application can be divided into a standard solenoid valve, a high-temperature and high-pressure solenoid valve, and a pinch valve. Principle: When energized, the micro solenoid valve coil generates electromagnetic force to lift the closure from the valve seat, and the valve opens; when disconnected, the electromagnetic energy disappears, and the spring force presses the closure on the valve seat, and the valve closes. For more information about fluid control components, please feel free to contact us! If you are looking for a reliable microfluidic manufacturer, don't hesitate to contact us!
STEEL PDC BIT The drill body of the Steel PDC Bit is made of a whole piece of alloy steel by machining, and the cutting teeth are made by welding the composite piece on the tungsten carbide material tooth post, and then the cutting teeth are inlaid on the drill body, and the diameter-preserving part is also inlaid with diamond blocks or other wear-resistant materials on the drill body. Steel PDC bit is suitable for fast drilling in the stratum which is easy to drill at the bottom of the compressive strength without gravel, and it has a wide flow channel also in the timely transportation of rock brow. Click to learn more about pdc bit manufacturers. Different Types Of Steel PDC Bit For Sale Steel PDC Drill Bit Steel PDC bits are mainly used in difficult to drill formations with high gravel and compressive strength. Features Of Steel PDC Bit Design: The Steel PDC bit is a one-piece design, ensuring stability at higher drilling speeds and resistance to lateral loads. Performance: Utilizing the PDC composite's cutting action, it achieves low torque, excellent stability, and high drilling speeds, especially under minimal pressure. Durability & Application: Steel PDC bits are wear-resistant, ideal for abrasive formations and deep-well operations. Advantages Of Steel Body Over Matrix Body PDC Bits Composition: The Steel PDC Bit by Top Tool is meticulously crafted from medium carbon steel, with its cutting teeth pressure-fitted onto the crown. Surface treatments like tungsten carbide spray heighten its erosion resistance. Features: Distinctively, Steel Body Bits have an expansive chip flute area, elevated flank height, and a slimmer flank thickness, positioning them ahead of tire body bits. Top Tool's Advanced Design: Top Tool's pcd drill bits are enhanced with a tungsten carbide layer, amplifying wear resistance and optimizing hydraulic performance, especially in soft strata. This design amalgamates the advantages of various bits, ensuring superior drilling speed. As a pdc bit company, we will do our best to meet all the needs of customers. Now the price of wholesale drill bit is affordable, anything you need, please contact us.
SMC (Sheet Moulding Compound) water tanks are made of a composite material consisting of thermosetting resin, glass fibers, and mineral fillers. The material is molded into panels and then assembled to form a water tank of the desired size and shape. SMC water tanks are durable, lightweight, and resistant to corrosion, making them ideal for outdoor and indoor applications, such as residential, commercial, and industrial water storage. GRP (Glass Reinforced Plastic) water tanks are also made of composite material, but they use a different manufacturing process. GRP tanks are made of layers of fiberglass reinforced with resin and formed into a seamless, one-piece vessel. Like SMC tanks, GRP tanks are lightweight and durable, and they are also resistant to corrosion and UV radiation. They are commonly used for industrial applications, as well as for residential and commercial water storage. GRP Water Tank/SMC Water Tank/FRP Water Tank GRP module water tank is a new type water tank after the development of reinforced concrete water tank , steel plate water tank, stainless steel water tank.GRP water tank combined with the GRPmolding panel, sealing materials, metal structure and piping system to onsite assemble together. Cleanliness and saniation SMC Water Tanks satisfy relevant Food Sanitation standards. Since exterior light is completely blocked, bacteria generation and germ growths are prevented. In particular, when large panels are employed, existing water tank interior structures are eliminated, allowing long-term sanitary use of water tanks. Excellent durability The interior structural components of a water tank consist of Storage Tank System (STS) and Base Layer (STS PE coating and Winding Pipes) that prevent corrosion or rusting. The external components are Melt Zinc plated, thus having semi-permanent useful life. Complete water tightness Special sealants with international patents are used to guarantee water tightness.
GRP Water Tank/SMC Water Tank/FRP Water Tank GRP module water tank is a new type water tank after the development of reinforced concrete water tank , steel plate water tank, stainless steel water tank.GRP water tank combined with the GRPmolding panel, sealing materials, metal structure and piping system to onsite assemble together. Cleanliness and saniation SMC Water Tanks satisfy relevant Food Sanitation standards. Since exterior light is completely blocked, bacteria generation and germ growths are prevented. In particular, when large panels are employed, existing water tank interior structures are eliminated, allowing long-term sanitary use of water tanks. Excellent durability The interior structural components of a water tank consist of Storage Tank System (STS) and Base Layer (STS PE coating and Winding Pipes) that prevent corrosion or rusting. The external components are Melt Zinc plated, thus having semi-permanent useful life. Complete water tightness Special sealants with international patents are used to guarantee water tightness. Rational capacity design Various panel designs are used to design tanks of all capacities and dimensions. Convenient installation Standardized parts are used for on-site installation so that materials can be brought into restricted areas for convenient installation. Excellent thermal protection Single panels are used for water tanks installed underground, while the insulated panels, which are single panel with insulation material compressed together, provide excellent insulation on water tanks installed outdoors.
Description The three comprehensive vibration test chamber is an instrument and equipment that simulates high temperature, low temperature, high and low temperature cycle, constant wet heat and alternating wet heat test, and can realize the comprehensive test of three factors of temperature, humidity and vibration after connecting with the shaking table. It is generally suitable for aerospace, aviation, petroleum, chemical, electronics, communications and other scientific research and production units to test the adaptability of products and materials to the temperature, humidity and vibration composite environment changes during transportation and actual use, exposing the defects of products, and is an essential and important test means for the whole process of new product development, prototype test and product qualification test. Feature Temperature and humidity vibration chamber, laboratory and refrigeration system as one of the combined structure, compact and beautiful, the console is set separately, easy to operate. High quality French imported Taikang compressor, higher efficiency, stable and reliable. Test temperature -70 to 150. Test humidity from 20%RH to 98%RH Latest eco-friendly refrigerant (R404a/R23) Ceramic stainless steel tungsten wire electric heaters have a longer life and higher thermal efficiency. Equipped with RS232 communication interface. Imported LCD color LCD touch screen, temperature and humidity program automatic control. Protection features include studio overtemperature, compressor overload, overpressure, oil pressure overpressure, fan overload, phase loss, compressor delay, etc. From time to time, several users choose safety protection features, such as low wind speed, door not closed tightly, etc. Different types of shaker can be selected according to user requirements to ensure cold, hot and steam sealing, and the shaker has good mechanical transmission characteristic
The alumina abrasive having a microcrystalline structure obtained by the gel method is called ceramic abrasive grain. Through special processing, each grain has thousands of tiny crystals. This structure brings very good self-sharpness performance of the grains, which can continuously reveal new and sharp cutting edges. RIKEN RMC wood grain ceramic is very dense, rough, strong and sharp. When worn, the ceramic abrasive grain will produce a sharp cutting edge similar to the knife edge. Therefore, the ceramic abrasive grain will have a lower cutting temperature and lower burnt than the ordinary alumina when sanding hard to sand materials. It can be keeping sharpness for a long time with low loading. So that will bring you less total downtime and longer life. Ceramic Abrasive Grain Product AP50M Ceramic Abrasive Grain Brief Introduction of Ceramic Abrasive Grain Wood grain ceramic products could process into kinds of shapes, like belts, sand discs, sheets. The grains character decide that products have longer sanding life, higher cutting force and higher sanding efficiency performance. Ceramic abrasive belts and sanding discs could bring you rapid cutting on difficult-to-sand materials such as aerospace, aerospace alloys and forged steel. The unique ability of ceramic abrasives increase production and reduces labor costs. RIKEN RMC wood grain ceramic products also have a good performance in general sanding in auto repair, steamships, and aluminum alloys. The ceramic abrasive grain is a new abrasive with a microcrystalline structure prepared by gel sintering. It does not use the smelting method and uses Al2O3 below 5 microns. In the presence of an acid, some of the oxides is added to produce gelatin, which is made into granules. The raw material is strict, and the content of sodium oxide is less than 5%. It is characterized by non-smelting and crystallization within 3 microns.
