Applications 1.Skin Tightening 2.Wrinkle Removal 3.Eyes' area treatments 4.lncrease skin elasticity 5.Fat and cellulite reduction 6.Face wrinkle removal & lifting 7.Warm vacuum cellulite massage 8.Body slimming, contouring & shaping 9.Promote cell metabolism, improveblood circulation Working Principle 940nm Infrared laser reduces skin impedance by heating skin and RF energy penetrates deeply into connective tissue; The synergistic combination of infrared laser and conducted Bipolar RF energies increase the oxygen intracellular diffusion by heating the skin Vacuum plus specially designed rollers manipulate leads RF penetration to be even 5-15mm. At the same time, Cavitation and Rollers mechanical tissue manipulation nips and stretches fibrillar connective tissue, effectively breaks down subcutaneous fat as well as extruded capillary vessel, Increase lymphatic drainage, promotes metabolism and reduces or shrinks the size of the actual fat chamber and greatly improved body contouring effect; The technology that vacuum folds skin makes RF energy penetrate a specific folded skin, greatly improve effect and safety, even for the upper eyelid area treatment
Carbon steel washers are a common metal washer. Its working temperature usually does not exceed 538 degrees Celsius. It is especially suitable for high-concentration acids and many alkaline solutions. Carbon steel washers are usually used in equipment under high-temperature working conditions, such as equipment under hot water working conditions. The Brinell hardness is about 120. Compared with washers made of other materials: Compared with washers made of other materials, carbon steel washers have certain advantages. For example, compared with stainless steel washers, carbon steel washers are more economical, but they are not as good as stainless steel washers in terms of corrosion and rust resistance. When choosing washers, you need to decide what material to use based on the specific application and needs.
The popularity of Java Robusta Coffee is certainly not inferior to coffee originating from other parts of Indonesia such as Aceh Gayo Coffee. Java Robusta coffee certainly has its own fans by the Indonesian people. In general, Robusta coffee is considered as number two coffee, but make no mistake. If this Robusta coffee is processed correctly, of course, it can produce a taste and aroma that is not inferior to Arabica coffee. Robusta coffee is coffee that does not have a sour taste at all. A more concentrated taste than arabica, as well as higher caffeine. The island of Java is one of the largest producers of robusta coffee in the world and is very well known for its coffee. Thick body, no sour taste, and a slightly chocolaty taste make this coffee very popular. Java Robusta coffee is also suitable for serving with a mixture of milk such as the drip coffee serving method, even Espresso
Diode laser hair removal machine OEM logo Medical CE vertical 808nm diode ndyag laser hair removal epilator 808nm diode laser Model: QM-808+ Applications: For any unwanted hairs on areas of face, arms, armpits, chest, back, bikini, legs and etc. (including light, blond and thin hairs) Working Principle: Diode laser hair removal technology is based on the selective dynamics of light and heat. The laser goes through the skin surface to reach the root of hair follicles; light can be absorbed and converted into heat damaged hair follicle tissue, so that hair loss regeneration without injury surrounding tissue. Slight pain, easy operation, the most safe, technology for permanent hair removal now.It is performed using gold standard 755nm+808nm+1064nm diode laser technology, with energy penetrates deep into the dermis with high average power and a rapid 10 pulse-per-second repetition rate to heat the hair shaft and hair follicle, rather than destroy the oxygen organization around hair follicle.Meanwhile, contacting surface cooling technology applied on the Sapphire Dual-Chill Tip can eliminate the heat effect attributed to optical energy, greatly improving both the treatment performance and safety. Specialty of QM-808+: ** New Medical and Elegant design ** Handpiece Specifications Technical Specifications: Laser Type Diode Laser Laser Stacks Power 1000-1600W Wavelength (Spectrum) 808nm/755nm+808nm+1064nm Energy Density (Fluence) 166J/cm2 (Continuously adjustable) Spot Size 15x15mm2 Dual chiller 25*25mm Pulse Repetition Rate 1-10Hz Pulse Duration 10-400ms Pulses Single Cooling +Continuous Sapphire contact cooling(-5�ºC~1�ºC) +Air cooling +Closed water circulation cooling Stand-by Working Continuously for 20 hours Display 10" True Color LCD Touch Screen Electrical Requirements 110/230VAC, 15/20A max., 50/60Hz Net Weight 55kgs Dimensions (WxDxH) 450*550*1000 mm
Diode laser hair removal machine OEM logo Medical CE vertical 808nm diode ndyag laser hair removal epilator 808nm diode laser Model: QM-808+ Applications: For any unwanted hairs on areas of face, arms, armpits, chest, back, bikini, legs and etc. (including light, blond and thin hairs) Working Principle: Diode laser hair removal technology is based on the selective dynamics of light and heat. The laser goes through the skin surface to reach the root of hair follicles; light can be absorbed and converted into heat damaged hair follicle tissue, so that hair loss regeneration without injury surrounding tissue. Slight pain, easy operation, the most safe, technology for permanent hair removal now.It is performed using gold standard 755nm+808nm+1064nm diode laser technology, with energy penetrates deep into the dermis with high average power and a rapid 10 pulse-per-second repetition rate to heat the hair shaft and hair follicle, rather than destroy the oxygen organization around hair follicle.Meanwhile, contacting surface cooling technology applied on the Sapphire Dual-Chill Tip can eliminate the heat effect attributed to optical energy, greatly improving both the treatment performance and safety. Specialty of QM-808+: ** New Medical and Elegant design ** Handpiece Specifications Technical Specifications: Laser Type Diode Laser Laser Stacks Power 1000-1600W Wavelength (Spectrum) 808nm/755nm+808nm+1064nm Energy Density (Fluence) 166J/cm2 (Continuously adjustable) Spot Size 15x15mm2 Dual chiller 25*25mm Pulse Repetition Rate 1-10Hz Pulse Duration 10-400ms Pulses Single Cooling +Continuous Sapphire contact cooling(-5�ºC~1�ºC) +Air cooling +Closed water circulation cooling Stand-by Working Continuously for 20 hours Display 10" True Color LCD Touch Screen Electrical Requirements 110/230VAC, 15/20A max., 50/60Hz Net Weight 55kgs Dimensions (WxDxH) 450*550*1000 mm
Diode laser hair removal machine OEM logo Medical CE vertical 808nm diode ndyag laser hair removal epilator 808nm diode laser Model: QM-808+ Applications: For any unwanted hairs on areas of face, arms, armpits, chest, back, bikini, legs and etc. (including light, blond and thin hairs) Working Principle: Diode laser hair removal technology is based on the selective dynamics of light and heat. The laser goes through the skin surface to reach the root of hair follicles; light can be absorbed and converted into heat damaged hair follicle tissue, so that hair loss regeneration without injury surrounding tissue. Slight pain, easy operation, the most safe, technology for permanent hair removal now.It is performed using gold standard 755nm+808nm+1064nm diode laser technology, with energy penetrates deep into the dermis with high average power and a rapid 10 pulse-per-second repetition rate to heat the hair shaft and hair follicle, rather than destroy the oxygen organization around hair follicle.Meanwhile, contacting surface cooling technology applied on the Sapphire Dual-Chill Tip can eliminate the heat effect attributed to optical energy, greatly improving both the treatment performance and safety. Specialty of QM-808+: ** New Medical and Elegant design ** Handpiece Specifications Technical Specifications: Laser Type Diode Laser Laser Stacks Power 1000-1600W Wavelength (Spectrum) 808nm/755nm+808nm+1064nm Energy Density (Fluence) 166J/cm2 (Continuously adjustable) Spot Size 15x15mm2 Dual chiller 25*25mm Pulse Repetition Rate 1-10Hz Pulse Duration 10-400ms Pulses Single Cooling +Continuous Sapphire contact cooling(-5�ºC~1�ºC) +Air cooling +Closed water circulation cooling Stand-by Working Continuously for 20 hours Display 10" True Color LCD Touch Screen Electrical Requirements 110/230VAC, 15/20A max., 50/60Hz Net Weight 55kgs Dimensions (WxDxH) 450*550*1000 mm
CaCL2 Dihydrate (72%, 74%, 77%) One type of inorganic salt that is both solid and liquid is calcium chloride. Solid calcium chloride can be a powder, granule, flake, or pellet with a white, crystallized form. It can be either dihydrate or anhydrous depending on the crystal water content. Clear and colorless, liquid calcium chloride is a solution. Due to the rapid dissolution, exothermic ability, ability to draw moisture from the air and surroundings, and ability to dissolve at extremely low temperatures of calcium chloride. CaCL 2 H20 Dihydrate (72%, 74%, 77%) Application Petroleum: drilling in oil fields, cementing, lubricating, and stabilizing mud layers. Most anions can be precipitated by calcium ions in water treatment.In addition to precipitating cations, chloride ions can oxidize ions to clean wastewater. Cryogen: A solution of calcium chloride is a crucial refrigerant used in freezers and ice makers. Used on parking lots, ports, roadways, and highways for deicing and melting snow. Pot is used as a dust-collecting and fog-removing agent on roads. As a dryer for materials such as sulfur dioxide, nitrogen, oxygen, and hydrogen chloride. In the process of making acrylic acid, ether, ester, and alcohol as a dehydrating agent. It can strengthen concrete's resistance to cold and increase its hardness. CaCL2 Calcium Chloride Dihydrate in Water(72%, 74%, 77%) Technical Index Item Calcium Chloride Calcium Chloride Dihydrate Anhydrous CaCl2 2H2O CAS 10035-04-8 10043-52-4 Chemical Formula CaCl2.2H2O CaCl2 Purity as CaCl2 74%min. 94%min. Alkalinity as Ca(OH)2 0.2%max. 0.25%max. Total Alkali Chloride (as NACL) 5.0%max. 5.0%max. Water Insoluble 0.15%max. 0.25% max. Fe 0.006%max. 0.006%max. PH 7.5-11.0 Total Magnesium (as MgCl2) 0.5%max. Sulfate (as CaSO4) 0.05%max. Appearance White flake, powder, granule, pellet White powder, pellet Standard Packaging 25kgs/1000kgs woven bags with PE liner inside or according to customer's request.
We understand the technicalities of working with copper, a softer metal than steel, and one that requires some extra skill in fabricating busbars. With our prototyping capability, we can usually provide samples of busbar, copper busbars and electrical busbar for evaluation. Our copper also finds numerous uses in electrical industries. Some of the properties of copper used in this application are listed below - Copper Alloy No. Temper Desi. Thickness Tensile Stren. (N/ mm2) Hard ness HV Bend Test Over Upto & incl. Transverse Longitudinal C-1100 Annealed 0.5 mm 10 mm 210 Angle Radius Angle Radius Half Hard 0.5 mm 2.0 mm 240 55max 180 Close 180 Close Half Hard 2.0 mm 10.0 mm 240 70-95 180 - 180 - Hard 0.5 mm 2.0 mm 310 70-95 180 - 180 - Hard 2.0 mm 10.0 mm 290 90min 90 - 90 - 90min 90 - 90 Chamfering Radius Thickness Chamfering Radius 2mm (min) / 5mm (max) 0.8 5mm (min) / 8mm (max) 1.2 8mm (min) / 30mm (max) 1.6 Physical Properties No. Temper Description. Conductivity % (20C) C1100 0 C1100BB-0 100% (min) 1/4H C1100BB-1/4H 95% (min) 1/2H C1100BB-1/2H 98% (min) H C1100BB-H 97.16% (min) Chemical Properties No. Purity Oxygen Content. Cu PPM C11000 99.90 (min) Upto 250 ppm
General Introduction: It uses vacuum suction mode controlled by intelligent process, through the combination of products and equipment (High Frequency, Diamond Peeling, Ultrasonic, Oxygen Sprayer, Vacuum, BIO, PDT Light, Skin Scrubber) to improve skin. Clinical Applications: 1. SPA Microdermabrasion SPA Skin beauty machine completely changed the traditional way, which is hand-cleaning skin relying on individual's practice skills, SPA Skin beauty machine, using vacuum suction mode controlled by intelligent process, through the combination of products and equipment, deep cleaning the skin and pores off horny, acne, blackheads and other impurities in very short period of time. And improve the deep absorption of nutrition products, promote pores tightening, smooth skin, increase skin moisture, and make your skin whitening, moisturizing and good texture. 2. PDT light Photon dynamic is a cold light and will not create high heat or burn the skin. It can transfer light energy into cell inner energy, accelerate circulation of cells' growth, and stimulate the fiber cell to produce collagen protein. It has unimaginable effects on aging skin, acne skin, macular skin allergic skin, wrinkled skin and the sun-burnt skin, never bringing injury or discomfort to the skin. PDT is the world's top scientific and technological achievement, which applies photon dynamic reactivity to skin treatment and nursing. It is a facial skin care expert without side-effect and can be operated easily. 3. Vacuum with RF heat energy the perfect combination of vacuum and RF heat energy to deeply do massage in the different depth of fat layers, breaker and dissolve cellulite, tighten and shape body. It can break up the subcutaneous fat, decrease cellulite accumulation, smooth lymph and discharge the fatty acid and toxin that is decomposed through lymph system. 4. 40KHZ ultrasound cavitation using 40kHz~1MHz ultrasound to make intense vibration, which can cause an inner explosion in the fat tissues and finally get rid of lipocyte. It can effectively break down stubborn and deep fat, decrease quantity of lymphocytes . The vacuum can promote liquid flow of lipocyte and fat tissues, then speeds up excretion of toxins and waste, achieving effect of fat elimination, slimming, skin tightening muscle flexibility enhancement.
Glass fused to steel (GFS) tanks are a type of bolted storage tank made from two materials: glass and steel. High strength TRS (titanium rich steel) plates and enamels are perfectly fused at high temperatures to form a highly inert inorganic glaze layer. This coating system has excellent anti-corrosion properties and is the best choice for tank and silo. YHR Tanks, as an experienced glass-fused-to-steel tank manufacturer , has consistently concentrated on the research and production of glass-fused bolted steel tanks since the mid-1990s. After over two decades of continuous dedication, our Glass fused to steel water tanks have found extensive applications in domestic municipal, environmental protection, aquaculture, and various other fields. Additionally, they have been exported to international markets. TYPES OF GLASS FUSED TO STEEL BOLTED TANKS USES OF GLASS FUSED TO STEEL TANKS Uses of Glass Fused To Steel Tanks Glass fused bolted steel tanks find extensive applications across various industries, serving diverse purposes in different settings. These tanks are notably utilized in: Water Treatment Plants Wastewater Treatment Plants Biogas Plants Agriculture Food Processing Plants, and more. Renowned for their extended service life and minimal maintenance requirements owing to corrosion resistance and UV stability, glass-fused tanks cater to municipal, industrial, and agricultural needs. Their exceptional corrosion resistance, durability, and easy maintenance features make them highly suitable for the storage and processing of a wide range of liquids, chemicals, and gases. Additionally, these glass fused bolted steel tanks are employed for rainwater harvesting, firefighting, and the storage of various industrial liquids.
STANDARD PDC CUTTER The PDC Cutter produced by the PDC cutter manufacturer combines a polycrystalline diamond layer for hardness and wear resistance with a cemented carbide substrate for strength and impact resistance. Polycrystalline diamond composite, a super hard material, is formed by sintering single-crystal diamond micro powder with binders, typically cobalt or nickel, under high temperatures and pressures. Diamond composites used for drilling are primarily flat, though some specialized shapes include cylindrical or a combination of cylindrical and hemispherical forms. Types Of Standard PDC Cutter PDC Insert Top Tool employs a sophisticated synthesis technique to fabricate PDC Cutters, seamlessly integrating the merits of diamond and cemented carbide. Cambered Face PDC Cutter This type of the PDC cutter is different from the common ones. It has higher impact resistance with its cambered face shape of diamond surface. Conical Shaped PDC Cutter Our conical PDC cutters focus more stress on rocks due to their shape and have a thicker diamond table for better impact strength and wear resistance. In tough drilling conditions, they boost the drill bit's performance and ROP. Domed Shaped PDC Cutters The PDC steel body bit, designed for dome PDC cutters and PCD inserts, offers fast drilling and efficient rock debris clearance with less mud. Ideal for complex hard-layer drilling, its spherical tungsten carbide enhances bond area. The claw-designed interface between PCD and tungsten carbide reduces stress, improving toughness, strength, and longevity. Ridge Shaped PDC Cutter Our organization introduced a ridge-shaped diamond composite sheet with superior abrasion resistance and impact toughness. Its unique inclined surface structure reduces the risk of collapse and stress concentration, making it ideal for coal fields and oil well drills.
Industrial Microwave Tuners are waveguide components used to match the load impedance with the source impedance. They minimize the amount of reflected power, providing the most efficient coupling of power to the load. Dolph Microwave supplies both manual 3- and 4-stub tuners, electrical and auto tuners. Industrial Microwave Tuners utilize manual tuning and lock simply. They are generally used in applications where the load impedance varies significantly due to variations in the load. Microwave components for industry microwave is 915 and 2450MHz. Taking the WR340 for example. FAQs of Industrial Microwave Tuners Application of Industrial Microwave Tuners Industrial Microwave Tuners is a common impedance adjust. The depth, spacing and radius of the pins can be set as required. It is a common device for impedance matching in high-power microwave systems. Work Principle of Industrial Microwave Tuners When a metal pin of a certain diameter is inserted along the center of the broad side in the waveguide, its equivalent circuit is parallel susceptance. When the insertion depth of the pin is shallow, the pin mainly acts as a concentrated electric field, and the equivalent susceptance of the pin is capacitive. As the insertion depth of the pin increases, the capacitance increases, and at the same time, the axial current on the broad side of the waveguide flows along the axial direction of the pin, thereby generating a magnetic field and making the pin have a certain inductance. LC series loop on the main line. The resonance of the pin is related to the operating wavelength, insertion depth and width of the narrow side of the waveguide. More industrial microwave components may interest you microwave bends microwave launcher There are many waveguide suppliers, but we are one of the best choices for you.
Fenton advanced oxidation technology is widely used in the treatment of refractory organic wastewater. Because it produces strong oxidizing OH (hydroxyl radical), which can rapidly oxidize and decompose the complex organic pollutant molecules, so its application is wide. The efficiency of Fenton oxidation mainly depends on the yield of �·OH (hydroxyl radical). The more and higher concentration, the higher removal rate of organic pollutants. According to the theory of free radical pairs,free radicals are always emerge in pairs.In some cases free radicals recombine,which reduces OH and reduces reaction efficiency. The recombination can only occur between "singlet state" free radical pairs.When there is no "singlet state" free radical that it cannot recombine,free radical reaction can only performed outside the cage. With the effect of an external magnetic field, the probability of the single state form is less,and the radical pair recombination is less. This facilitates higher reaction efficiency. We modified Fenton reagent technology by using the reaction in a certain strength magnetic field. 1. Reaction rate is doubled.Magnetized Fenton reagent advanced oxidation technology emerges higher rate .OH.The reaction is faster,HRT is shorter,and equipment footprint is smaller. 2. Higher COD removal rate.Magnetic Fenton reaction has 10% more COD removal rate. 3. Less chemical consumption.Magnetic field can reduce the recombination of free radicals,which indirectly reduces chemical consumption. 4. After sewage is magnetized, the physical and chemical properties will change to a certain extent,such as pH,viscosity,diffusion coefficient, surface tension,electrical conductivity, etc., which can affect the process of dissolution, crystallization, polymerization, wetting,agglomeration, solidification, and precipitation. And the metabolic processes of biological systems also have effect.Magnetic field also has an obvious memory effect on water.It changes the physical and chemical properties of the sewage and weakens the cage effect of the solution, which facilitates the out-of-cage reaction reduces the probability of recombination of free radicals, and also facilitates the smooth progress of the reaction.
ASTM B338/ ASME SB 338 Titanium Tube (Ti Tube) has a superior strength-to-weight ratio and corrosion resistance is one of the common titanium products. We generally divide ASTM B338/ ASME SB338 Titanium tubes into two types, one is called the seamless titanium tube, and the other is called the welded titanium tube. ASTM 338 TITANIUM ALLOY STEEL TUBE PROVIDED BY YUHONG ASTM B338/ ASME SB338 TItanium Alloy Steel Tube YUHONG GROUP provides the best ASTM B338/ ASME SB338 Titanium Alloy Steel Tube including straight tube, U tube for heat exchanger, boiler, and superheater. GR.1 TItanium Alloy Steel Tube GR.2 TItanium Alloy Steel Tube ASTM B338/ ASME SB338 TITANIUM ALLOY STEEL TUBE FEATURES ASTM B338 / ASME SB338 Titanium Tube Grade 7 UNS R52400 Alloy Steel Seamless Tube Titanium grade 7 is a corrosion-resistant alpha titanium alloy with similar mechanical properties to the commercially pure grades. There are 28 grades of titanium and titanium alloys for tubing purposes, among which Titanium Grade 2, Grade 7, and Grade 12 are most often seen in tubing applications. ASME SB-338 is the standard specification for seamless and welded titanium and titanium alloy tubes or tubing which are intended for surface condensers, evaporators, and heat exchangers. ASME SB-338 has a small palladium addition to improving corrosion resistance, particularly in mineral acids and strong brines. ASTM B338/ASME SB338 TUBING APPLICATIONS Chlorination systems Flue gas scrubbers Outlet ducting and stack liners for power plants, pulp and paper bleach plants, sulfur dioxide scrubbers, and weld overlay of less corrosion resistant metals Acid production and pickling systems Pharmaceutical industries use alloy fittings and tubing to avoid contamination caused by corrosion related failures Cellophane manufacturing Chlorination systems Pesticide production Incineration scrubber systems Chemical process industry in equipment like flue gas scrubbers, chlorination systems, sulfur dioxide scrubbers, pulp and paper bleach plants, pickling systems, and nuclear fuel reprocessing Waste water processing Pollution control stack liners, ducts, dampers, scrubbers, stack-gas reheaters, fans and fan housings Flue gas desulfurization systems Chemical processing components like heat exchangers, reaction vessels, evaporators, and transfer piping Sour gas wells Pulp and paper production Waste treatment Pharmaceutical and food processing equipment Alkaline Media Inorganic Salt Solutions Organic Chemicals Organic Acids Oxygen Hydrogen Sulfur Dioxide Hydrogen Sulfide Liquid Metals Chlorine Chemicals Hydrochloric Acid Phosphoric Acid Sea Water Sulfuric Acid Nitric Acid Anodizing and Oxidation Treatments If you are looking for a reliable ss pipe factory, don't hesitate to contact us!
OST Photonics offers various functional crystal materials for laser systems, optical equipment and instruments. Crystals are divided into six types according to their functions: laser crystals (diffusion bonding crystals, Nd:YAG, Er:YAG, Yb:YAG, CTH:YAG, Nd:Ce:YAG, Nd:YVO4, Nd:GdVO4, Nd:YLF, Pr:YLF, Ho:YLF, Tm:YLF, Ti:Sapphire, Er:Yb: Glass), nonlinear crystals (KDP & DKDP), KTP, LiNbO3, LBO, BBO, BIBO), passive Q-switch crystals (Cr4+:YAG, Co2+:MgAl2O4), birefringent crystals (YVO4, �±-BBO), Magneto-optic Crystals (TGG) and optical crystals (BaF2, CaF2, MgF2, LiF, Germanium single crystal, Sapphire (Al2O3), YAG, ZnSe, Silicon single crystal, ZnS). If you want to know more about our functional crystals, please do not hesitate to contact OST Photonics. What are Functional Crystals? A wide range of functional crystal materials is used in various optical applications. While optical glass is commonly used as a transparent material, different functional crystal materials, primarily monocrystalline materials, are required for diverse applications due to their unique functionalities: In contrast to glass, birefringent crystals can exhibit birefringence, which is a requirement for various types of polarizers, wave plates, birefringent tuners, and other optical components. Commonly used birefringent crystal materials include YVO4, �±-BBO, quartz, calcite and sapphire. The lattice symmetry of a crystal material is not too high (such as a triangular, quadrilateral, or single prism), and it can exhibit nonlinearity. Nonlinear crystals are primarily used for nonlinear frequency conversion but also find applications in optical modulators like the Pokel cell. A wide variety of functional crystal materials can be used as laser crystals, serving as host materials for laser-active dopants (rare earth ions or transition metal ions). They typically exhibit relatively high transition cross sections, small gain bandwidth, and good heat conduction compared to laser-active glasses. In general, they also allow for higher doping concentrations. In some cases, functional crystal materials are used in spectral regions where glass does not have a wide enough wavelength range and high transmittance. In particular, various materials such as zinc sulfide (ZnS), zinc selenide (ZnSe) and Sapphire (Al2O3) are used as infrared crystals, and other materials such as lithium fluoride (LiF), calcium fluoride (CaF2) and magnesium fluoride (MgF2) are used as ultraviolet crystals. Some functional crystal materials, such as terbium gallium garnet (TGG), exhibit the Faraday effect (polarization rotation caused by magnetic fields), and they can be utilized in devices like Faraday rotators and Faraday isolators.
