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Anionic polyacrylamide (APAM) is a water-soluble high molecular polymer. It is mainly used for flocculation, sedimentation and clarification treatment of various industrial wastewater, such as wastewater from iron and steel plants, wastewater from electroplating plants, metallurgical wastewater, and coal washing wastewater.

Cationic polyacrylamide (CPAM) is a linear polymer compound. Because it has a variety of active groups, it can interact with and adsorb many substances to form hydrogen bonds. It is mainly used to flocculate negatively charged colloids, which have the functions of turbidity removal, decolorization, adsorption, adhesion, etc., suitable for dyeing, papermaking, food, construction, metallurgy, mineral processing, coal powder, oil field, aquatic product processing and fermentation and other industries.

Non-ionic polyacrylamide( NPAM) is a water-soluble polymer or polyelectrolyte. It can accelerate the sedimentation of particles in the suspension, has a very obvious effect of accelerating the clarification of the solution and promoting filtration. It is mainly used for flocculation, sedimentation and clarification treatment of various industrial wastewater.

Polyaluminum chloride (PAC) is an inorganic substance, a new water purification material, and inorganic polymer coagulant, abbreviated as polyaluminum. It can strongly remove micro-toxic substances and heavy metal ions with stable properties. The colors of polyaluminum chloride are generally white, yellow, and brown. Different colors of polyaluminum chloride are also quite different in application and production technology.

White corundum is a kind of artificial abrasive. The content of aluminum oxide (Al2O3) is more than 99%, and contains a small amount of iron oxide, silicon oxide and other ingredients, which is white.

Brown corundum is made of bauxite and coke (anthracite) as the main raw materials. It is smelted at high temperature in an electric arc furnace. The abrasive tools made of it are suitable for grinding metals with high tensile strength, such as various general steels , Malleable cast iron, hard bronze, etc.