... wastewater, leather wastewater, printingCeramics class: kaolin, superfine glass powder, fire-proof material, silica sand, spray soil grain, ... salt, alkali, monosodium glutamate, soya-bean milk, yeast, glucose powder, wheat starch, wheat flour, rice flour, skimmed milk ... mining: Coal Washing, lead powder, zinc powder oxygen, the diamond powder, aluminum and iron powder.working principle:1. Working by ...