a. Fully sealed,stable function b. Low cost, easy operation and fix c. High suitable for POWDER,slurry,etc. ApplicationMetal, metallurgy mining industry; aluminum powder, ceruse, copper powder, ore alloy powder, welding rod powder, dioxide manganese, electomagnetism materials, rubbing powder, fire-proof material, kaolin, lime, aluminaChemical industry: resin, pigment, industrial medicine, ...