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Our 3 ply Medical Face Mask has obtained FDA certification. Our 3-layer surgical mask is suitable for surgery with moderate blood, liquid, spray or aerosol exposure. The disposable surgical mask is made of flexible nose and chin straps.

Silicon slag generally refers to the remaining part after refining the ore. The slag also contains a certain proportion of silicon elements, which can significantly improve the strength, hardness and elasticity of steel, increase the magnetic permeability of steel, and reduce transformers Hysteresis loss of steel and increase deoxidation rate.

Silicon Slag is a kind of mixture which contains the main content Silicon (45%~95%) and other components such as C, S, P, Al, Fe,Ca. Silicon slag is a by-product from the productive process of silicon metal, mainly used in steel making, casting and so on. Silicon slag can also be very good to improve furnace temperature, increase the flow of molten iron slag effectively.

Silicon Slag is a by-product from the manufacturer of silicon metal, mainly used in steelmaking, casting and so on. Silicon Slag is a kind of mixture which contains the main content Silicon (30%~70%) and other components such as C, S, P, Al, Fe. Those contents made silicon slag to be a great de-oxidizer.

Silicon Metal 2202 is high grade silicon metal.It's silicon content is above 99.5%. The ferro content is 0.2%, the aluminum content is 0.2%, and the calcium content is 0.02%. The size of silicon metal grade 2202 is 10-100mm.

Silicon metal 3303 ​(Si) is an industrial purified single silicon, which is mainly used for the production of silicone, the preparation of high-purity semiconductor materials and the preparation of special-purpose alloy.

Metallurgical grade silicon metal 441, with a silicon content of 99%. The contents of iron, aluminum, and calcium are 4%, 4%, and 1%. Silicon metal is an essential element in steelmaking. Silicon metal 441 has a higher silicon content. So it can be used as an iron alloy additive in the steelmaking industry. The price of silicon metal 441 is higher than metal silicon metal 553, but the quality is better.

Silicon metal 553 is a commonly used grade silicon metal. In the silicon metal 553, the silicon content should be as high as 98.5%. The contents of iron, aluminum, and calcium are 0.5%, 0.5%, and 0.3% respectively.

Pipe mould powder is a ferrosilicon based composite material. Its alloying elements and particle size have been strictly designed and controlled, which can effectively reduce the degree of subcooling, inhibit the formation of carbides, slow down the decay time, and are sensitive to the size of the casting It is small, and the inoculation effect has good consistency. Pipe mould powder has a unique effect in eliminating the defects of cast pipe porosity

Silicon aluminum barium calcium is an iron alloy material. It is an ideal deoxidizing and desulfurizing agent. It is simple to use and can effectively improve alloy recovery rate.

Silicon carbide Ball,which also called Silicon carbide Briquette or SIC Ball, is pressed by silicon carbide powder . It has better effect than conventional particle size deoxidizer, and is more energy-saving and environmentally friendly.

Silicon slag briquette is made of silicon slag, a by-product from production of silicon metal, also known as the name of silicon slag, silicon metal slag. The Si content is less than Silicon Metal or Ferrosilicon. The briquette shape made it easy to melt and less dust when using.The briquette shape made ​it easy to store and shipping.