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99.6%Content Paraformaldehyde(POM CAS No 30525-89-4) from China Supplier
Specification:
Item Standard Test result
Appearance
Content 96% +1 96.38
Acid value (formic acid) 0.03% 0.03%
Ash 0.03% 0.03%
Fe content Less than 0.0003% (wt.)i.e.3ppm <0.0003%
PH value (20C) 3.5-6.0 5.6
Application;

1, farm chemical: composite acetochlor, butachlor, ect

2, paint: composite high-end automobile paint

3, resin: composite urea resin, phenolic resin, ect. and various adhesives

4, papermaking: composite paper intensifier

5, casting: casting remover and adhesive of casting synthesis

6, cultivation industry: fumigation disinfectant

7, organic raw materials: for the production of glycerol, crylic acid, and so on

Micro Perforated Metal

Micro Perforated Metal Sheet
Micro Hole Perforated Metal, widely Used in Filter Production, with Superior Precision. Competitive Price. Ready Stock to Ship and Pay Balance After Receipt.
Micro perforated metal sheet is a kind of high precision metal material with small and uniform holes. Its tiny aperture making it suitable for use in the filtration industry and as a barrier.

Micro Hole Perforated Metal, widely Used in Filter Production, with Superior Precision.Competitive Price.Ready Stock to Ship and Pay Balance After Receipt.



Micro perforated sheet,also known as punched metal, the most popular and versatile metal mesh products. Micro perforated metal sheet is a kind of high precision metal material with small and uniform holes. Its tiny aperture effectively blocks large particulate matter while allowing air and liquids to flow freely, making it suitable for use in the filtration industry and as a barrier. Its high strength, corrosion resistance, good cleaning, can maintain stable performance in a variety of environments, is one of the indispensable materials in modern industry.

0.5mm Perforated Sheet


0.5mm Perforated Metal Sheets â?? Customizable to Your Specifications
As a trusted supplier of 0.5mm perforated metal sheets, we specialize in providing custom perforation solutions for a variety of industries. Our perforated sheets offer the perfect balance between strength, durability, and design flexibility, making them ideal for applications in construction, filtration, acoustics, and more.


Why Choose Our 0.5mm Perforated Metal Sheets?

Precision Perforation for Perfect Performance
Our 0.5mm perforated sheets feature high-precision holes that meet the exact specifications you require. Whether you need round, square, or slotted perforations, we deliver a product that maintains consistent hole size, pitch, and open area percentage, ensuring optimal performance for your specific application.


Wide Range of Materials
We provide 0.5mm perforated metal sheets in a variety of materials to suit your needs:

Stainless Steel (304, 316)

Aluminum (1060, 3003, 5052)

Galvanized Steel

Mild Steel / Carbon Steel

Brass & Copper (available on request)

Each material type is carefully selected for strength, corrosion resistance, and suitability for specific environments, making them ideal for both indoor and outdoor use.

Custom Perforated Metal


Perforated Sheet

Perforated metal plate is a product of using mechanical stamping to form holes of a certain shape and size in a metal or a non-metal plate, which is widely used in construction, industry and decoration fields. It has excellent strength and durability, highly dimentional accuracy, and small margin of error while providing good air permeability and light conditioning. The aperture, shape and arrangement of perforated metal plates can be customized according to customer needs, suitable for facade, partition, guardrail, filter and other uses.

We offer a wide variety of perforated metal products to meet diverse industrial and architectural needs. Our Round Hole Perforated Metal and Round Hole Perforated Sheet are among the most popular choices, known for their versatility in applications such as ventilation, filtration, and decorative panels. For those seeking modern aesthetics and enhanced strength, our Hexagonal Hole Perforated Metal and Hexagonal Perforated Sheet provide excellent open area and structural integrity. If you're looking for a clean and uniform appearance, the Square Hole Perforated Metal and Square Perforated Sheet offer a sleek solution ideal for partitions, enclosures, and signage. Additionally, we supply Slot Hole Perforated Metal and Slotted Perforated Sheet, which are perfect for drainage, sieving, and sound control applications. All our perforated sheets are manufactured with precision and can be customized to suit specific requirements in size, pattern, and material.

Product Name: Paraformaldehyde

Identification
Synonyms p-Formaldehyde; Polyoxymethylene
Molecular Formula (CH2O)n
Molecular Weight 90.08
CAS Number 30525-89-4

Properties
Melting Point 120-170C
Density 0.88
Flash Point 71C
Water Solubility sparingly soluble

Specification
Item Specification
Formaldehyde Content 96.0% ±1% 97.0%±1%
Acidity(Formicacid) 0.03% max
Methanol Content 1.0 % max
Ph 5-9
Iron Content 0.0002% max
Ash 0.05% max

Application
As ideal substitute of industrial formaldehyde. It can be used in the manufacture of glyphosate, acetochlor, machette, tricyclazole as well as high-grade automobile paint, phenol-formaldehyde resin, melamine resins and ion exchange resin etc.

Solar Metal Roof Mounting System
Solar panel mounting systems for metal roofs

For metal roof installations, Huitai Photovoltaic offers a variety of solar panel roof mounting solutions based on different roof types and module installation requirements. Huitai Photovoltaic Metal Roof Solar Mounting Systems are compatible with various metal roofing profiles, including Kliplok, trapezoidal, corrugated, and standing seam metal roofs. These systems are designed to provide secure, reliable, and efficient solar panel installation solutions for metal roof solar projects.

Metal roof solar mounting systems use durable aluminum rails and clamps to securely fasten solar panels onto metal roof seams. The seam-clamping design minimizes roof penetration while maintaining a strong and waterproof connection. The rail system elevates solar panels at an optimized tilt angle to maximize solar energy generation. Complete accessories including splice plates, end clamps, mid clamps, and bonding components allow flexible configurations for different roof structures and solar array sizes.

These non-penetrating mounting solutions help preserve roof integrity while providing strong resistance to wind and snow loads. Their lightweight and low-profile design reduces structural stress and offers a reliable and cost-effective solution for solar installations on metal roofs.

Base & Rail System
Versatile: Compatible with various metal roof profiles and suitable for most metal roofing systems.
Durable: Manufactured from high-quality Al6005-T5 aluminum for excellent corrosion resistance.
Easy Installation: Pre-assembled components help reduce installation time and labor costs.

1.Matrial: c45, c50, 20mncr5, 46cr13 etc.
2.Demension: as your drawing
3.Both semi-finished & finished products.

Wooden cases/pallet

Investment Casting
Investment casting is a manufacturing process in which a wax mold is coated with a refractory ceramic material. Once the ceramic coating material has dried and hardened, the wax melts and leaves the final product geometry in the internal cavity. Molten metal is poured into the cavity where the wax mold is located. The metal solidifies in the ceramic cavity, cools, and then the ceramic is removed from the metal casting. The result of this process is net-accurate to near-net-accurate metal parts that can be used in a wide range of applications in a variety of industries.

The process of investment casting
Investment casting is a manufacturing process in which a liquid material is poured into a ceramic mold that contains a cavity of the desired shape and then allowed to solidify. The solidified part is the casting, which is removed from the ceramic mold to complete the process. The steps in the investment casting process are as follows:

Step 1: Engineering Review
The first step in the manufacturing process is a complete Design for Manufacturing (DFM) review with the customer.
This will include an evaluation of the print dimensions associated with the investment casting process, wax injection pattern build considerations (e.g., gate locations), backshell material requirements and expected tolerances for part fit, form and function, and final inspection criteria to determine a mutually acceptable part.

Step 2: Mold Design and Fabrication
The process begins with a precision-designed wax injection mold to produce a wax mold representative of the final part.
These design considerations are discussed with the mold maker and a mold design is created.
Molds are designed and built to replicate millions of wax parts over their lifetime.

Step 3: Wax Mold
Wax injection molds are quantified and ready for production and sent to the wax chamber for injection and assembly.
In our process, 1 to 100 patterns are injected and placed or bonded onto a pre-made wax runner system (called a â??treeâ?? in our process).
Wax part filled trees are also called (part) clusters.
The clusters are then sent to the impregnation room for the next step.

Step 4: Ceramic mold construction
The wax trees are dipped into the ceramic slurry and completely encapsulated. After removal, they are completely encapsulated with sand to form the first layer of the shell and then left to dry.
This sand dipping and wrapping process is repeated 6 to 8 times with a drying period between each time.
By repeating this process, it creates a laminating effect, forming a solid ceramic shell around the wax mold, which is called investment. The shell is now run through our drying system for 24 to 36 hours and then the wax is removed from the shell.

Investment Casting
Investment casting is a manufacturing process in which a wax mold is coated with a refractory ceramic material. Once the ceramic coating material has dried and hardened, the wax melts and leaves the final product geometry in the internal cavity. Molten metal is poured into the cavity where the wax mold is located. The metal solidifies in the ceramic cavity, cools, and then the ceramic is removed from the metal casting. The result of this process is net-accurate to near-net-accurate metal parts that can be used in a wide range of applications in a variety of industries.

The process of investment casting
Investment casting is a manufacturing process in which a liquid material is poured into a ceramic mold that contains a cavity of the desired shape and then allowed to solidify. The solidified part is the casting, which is removed from the ceramic mold to complete the process. The steps in the investment casting process are as follows:

Step 1: Engineering Review
The first step in the manufacturing process is a complete Design for Manufacturing (DFM) review with the customer.
This will include an evaluation of the print dimensions associated with the investment casting process, wax injection pattern build considerations (e.g., gate locations), backshell material requirements and expected tolerances for part fit, form and function, and final inspection criteria to determine a mutually acceptable part.

Step 2: Mold Design and Fabrication
The process begins with a precision-designed wax injection mold to produce a wax mold representative of the final part.
These design considerations are discussed with the mold maker and a mold design is created.
Molds are designed and built to replicate millions of wax parts over their lifetime.

Graphitized petroleum takes petroleum coke as raw material, puts petroleum in graphitization furnace, and makes it through graphitization processing technology, and has the same performance and physical and chemical indexes as the products produced by traditional production technology.Let all customers with our cooperation truly feel

Solar Flat Roof Mounting System
Solar Mounting Systems for Flat Roof: Customizable Support for Various Roof Applications

Fully Certified Flat Roof Solar Mounting Solutions
Huitai Photovoltaic specializes in advanced flat roof solar mounting systems designed for residential, commercial, and utility-scale solar projects. With extensive experience in photovoltaic mounting technology, Huitai provides flexible and reliable� solar panel roof mounting� solutions suitable for different roof structures and installation requirements.
� 
Flat roofs offer large unused spaces that can be efficiently transformed into clean energy generation areas. Huitai flat roof solar mounting systems are engineered with careful consideration of roof load capacity, wind resistance, and installation safety to ensure stable long-term performance.

Features at a Glance

 Compatible with both portrait and landscape panel layouts
Durable all-metal construction with smooth edge design
 Integrated and protected cable management system
 Universal components compatible with different mounting systems
Certified according to major industry standards
 Fast and efficient installation design
Flat Roof Solar mounting System -Steel Mounting

Huitai Solar Flat Roof PV Mounting Systems feature adjustable installation angles and multiple foundation options, making them suitable for a wide range of applications. The system can be installed on flat roofs as well as ground-mounted solar projects.
With optimized structural design and pre-assembled components, the system significantly reduces installation time and transportation costs. Flexible connection designs allow the mounting structure to adapt to different site conditions and project requirements.
Our flat roof solar mounting system supports both ground screw and concrete foundation installations, while adjustable inclination angles and heights provide greater flexibility for solar plant design and improved energy generation efficiency.

Benefits of Flat Roof Solar Mounting Systems
 

 Supports green, clean, and renewable energy generation
Adjustable panel tilt angles maximize solar energy absorption
Self-cleaning panel positioning helps improve long-term performance
 Compatible with various types of solar panels
 Low-profile installation offers a clean and discreet appearance
Easy rooftop access simplifies installation and maintenance
 Suitable for residential, commercial, and industrial applications
Strong wind resistance and structural stability

Valve Investment Casting
Yi Tai Machineryis a trusted manufacturer specializing in Valve Investment Casting using advanced casting technologies. With over 20 years of expertise, we deliver high-precision valve components that meet the strict requirements of various industries, including oil and gas, water treatment, chemical processing, and power generation.

Precision Casting for Valve Components
We offer custom valve casting solutions using two advanced processes:

1. nvestment Casting
This process is ideal for producing valve components that require high precision and smooth surface finishes. Using silica sol as the binder for ceramic molds ensures tight tolerances and superior surface quality.

Shell Mold Casting
Shell casting is a metal casting process similar to sand casting, in which molten metal is poured into a disposable sand mold. However, in shell casting, the mold is a thin-walled shell made by applying a sand resin mixture around the model. The model is a piece of metal with the desired part shape that can be reused to form multiple shell molds. Reusable models increase productivity, while disposable molds allow for the casting of complex geometries.

The process offers greater dimensional accuracy, higher productivity, and lower labor requirements than sand casting, and is often used for small to medium-sized parts with high accuracy requirements.

Shell casting is suitable for ferrous and non-ferrous metals. The most commonly used are carbon steel, alloy steel, stainless steel and copper alloys. Typical parts cast using this process are small to medium in size and require high accuracy, such as gearboxes, cylinder heads, connecting rods and lever arms.

Shell Mold Casting
Shell casting is a metal casting process similar to sand casting, in which molten metal is poured into a disposable sand mold. However, in shell casting, the mold is a thin-walled shell made by applying a sand resin mixture around the model. The model is a piece of metal with the desired part shape that can be reused to form multiple shell molds. Reusable models increase productivity, while disposable molds allow for the casting of complex geometries.

The process offers greater dimensional accuracy, higher productivity, and lower labor requirements than sand casting, and is often used for small to medium-sized parts with high accuracy requirements.

Shell casting is suitable for ferrous and non-ferrous metals. The most commonly used are carbon steel, alloy steel, stainless steel and copper alloys. Typical parts cast using this process are small to medium in size and require high accuracy, such as gearboxes, cylinder heads, connecting rods and lever arms.

Hot Sales Formula

NPK 30-10-10 NPK 30-9-9 NPK 20-10-10 NPK 28-8-8
NPK 20-20-15 NPK 17-17-17 NPK 18-18-18 NPK 19-19-19 NPK 15-15-15 NPK 16-16-16
NPK 15-5-25 NPK 15-5-20 NPK 17-7-17 NPK 19-9-19
NPK 16-16-8 NPK 12-12-17 NPK 16-6-20 NPK 12-24-12
WSF NPK 20 20 20 NPK 19 19 19 NPK 10-52-10 NPK 3-37-37 ETC
OEM Designed Formula
Tracing Elements: Zn Fe B Mn Mu Cu
Granular Color: Green/Blue/Yellow/White/Purple/Red

Compound fertilizer refers to chemical fertilizers containing two or more nutrients. The compound fertilizer has the advantages of high nutrient content, less auxiliary components and good physical properties. It is very important for alanced fertilization, improving fertilizer utilization rate and promoting high yield and stable yield of crops.

Cast bronze sculptures western style carvings religious statues copper sculptures

Cast Iron sculptures western style carvings religious statues

Product Description
Product Name: Magnesium oxide
Other Names: magnesium oxide light; magnesium oxide heavy; magnesiumoxidemeshwhitepowder; magnesiumoxidefusedcrystalswhitextl; magnesium oxide 96.0+ % for analysis; akro-mag; animag; anscorp; burnt magnesia; calcined brucite; calcined magnesite; calcinedbrucite; calcinedmagnesite; ci77711; corox; dynamag; dynatherm; elastomag 100; elastomag100; elastomag170; electromagnesia; electromagnesia (magnesium oxide); encapsulated mgo; flamarret; fused magnesium oxide; magnesium oxygen(-2) anion; Magnesia; Magnesium oxide anhydrous
Molecular Formula:MgO
HS No.: 2519909100
CAS No.: 1309-48-4
EINECS No.:215-171-9
Appearance:white hygroscopic solid mineral

SPECIFICATIONS
Our Magnesium oxide meets Chinese national standards, as well as European and American standards.

PHYSICAL PROPERTIES
Magnesium oxide (MgO), or magnesia, is a white hygroscopic solid mineral that occurs naturally as periclase and is a source of magnesium . It has an empirical formula of MgO.Pure MgO is not conductive and has a high resistance to electric current at room temperature.

APPLICATION
MgO is widely used in rubber (tire, cable, conveyor belt, synchronous belt, triangle belt, rubber tube, rubber plate, rubber roller, seal, rubber plug, etc.), adhesive, friction materials, organic magnesium salts, electronic components, catalysts, ceramics, glass fiber reinforced plastic, dye, medicine, national defense and other industries.

Product Description
calcined anthracite coal is used as auxiliary additives in the iron and steel smelting industry. Huarong carbon raiser are mainly based on the high quality of Ningxia "Taixi anthracite coal" with unique low ash, low sulfur, low phosphorus, high fixed carbon, high calorific value, which is calcined under 1200 degree high temperature. have following features: strong oxidation resistance, high mechanical strength and high chemical activit

Split Set Mining Systems

Friction Bolt Mining Systems
Friction Bolt mining systems are a type of rock reinforcement method used in underground mining operations to support excavations and prevent rockfalls or collapses.

Friction Bolt mining systems are commonly used in underground mining operations where ground conditions are poor or unstable. They are particularly effective in areas where traditional support methods, such as timber or steel sets, may be impractical or insufficient. Friction bolts can be installed quickly and easily, making them a popular choice for temporary or permanent rock reinforcement.

â?? Friction Bolts
Friction Bolts are typically steel tubes that are longitudinally split along their length. They are installed by inserting them into predrilled holes in the rock. As they are inserted, the split portion of the tube expands, exerting pressure against the rock walls. This pressure helps to support the surrounding rock mass and prevent it from collapsing.



â?? Friction Bolts
Friction bolts, also known as friction rock bolts or expansion shell bolts, are another component of Friction Bolt mining systems. These bolts consist of a steel rod with an expandable shell at one end. Similar to Friction Bolts, friction bolts are installed by inserting them into predrilled holes in the rock. Once in place, the shell is expanded, creating friction between the bolt and the surrounding rock, which helps to provide additional support.