hinese medicine powder, etc.
Food industry: sugar powder, starch, salt, rice flour, milk powder, soya bean milk, egg powder, soy sauce, fruit juice, etc.
metl, metllurgical mining: aluminum, lead powder, copper powder, ore, alloy powder, electrode powder, manganese dioxide, electrolytic copper powder, electromagnetic material, grinding powder, refractory, kaolin, lime, alumina, heavy calcium carbonate, quartz sand, etc.
Public nuisance treatment: waste oil, wastewater, dyeing and fin