MnO2 Powder (MnO2) belongs to an inorganic compound with the appearance of a black amorphous powder or black orthorhombic crystal, difficult to dissolve in water, weak acid, weak alkali, nitric acid, cold sulfuric acid.

Zinc sulfide (ZnS) belongs to an inorganic compound; the appearance is a white or slightly yellow powder, see the light color becomes dark. Stable in dry air, long placed in wet air or containing water, the gradual oxidation to zinc sulfate.

 A water reducer can be a concrete admixture to reduce mixing water consumption while maintaining an unchanged concrete slump. Most belong to anionic surfactants, lignin sulfonate, naphthalene sulfonate formaldehyde polymer, etc.

 Concrete release agent refers to a material applied on the construction formwork before concrete pouring, which can make the formwork not stick to the concrete surface, not easy to remove the mold, or affect the finish of the concrete surface. Nt.

Nano graphite powder is crushed into graphite powder particles, and then the graphite powder particles through the nanoscale screen are the nano graphite powder. The particle size of nano-graphite powder reached the nanoscale.

Tantalum carbide. A transition metal carbide; Black or dark brown metallic powder, cubic crystal system, hard, insoluble in water, slightly soluble in sulfuric acid and hydrofluoric acid, and soluble in the mixed solution of hydrofluoric acid and nitric a

Tantalum carbide. A transition metal carbide; Black or dark brown metallic powder, cubic crystal system, hard, insoluble in water, slightly soluble in sulfuric acid and hydrofluoric acid, and soluble in the mixed solution of hydrofluoric acid and nitric a

Chromium carbide (Cr3C2) is a grey powder with metallic lustre. Orthorhombic system; The density is 6.68g/cm3; The melting point is 1890 ℃, and the boiling point is 3800 ℃; It has good wear resistance, corrosion resistance and oxidation resistance under h

Chromium carbide (Cr3C2) is a grey powder with metallic lustre; Orthorhombic system; The density is 6.68g/cm3; The melting point is 1890 ℃, and the boiling point is 3800 ℃; It has good wear resistance, corrosion resistance and oxidation resistance under h

Zinc stearate is a lubricant. It can be used as a lubricant protector to treat skin inflammation. It can be used alone, combined with other powders, or prepared into an emulsion