1/Coal mine such as underground coal mine, coal washing plant, open-pit coal mine, etc. Lignite coal,brown coal, wood coal, bituminous coal, soft coal, anthracite coal, blind coal,semi-anthracite coal. Raw coal, middings (coal),cleaned coal, coking coal,baking coal,sintering coal, coal gangue, thermal coal, steam coal, oil shale, lignite coal, baking coal,filter cake of slime, hard coal, petroleum coke,crude oil coke,coal slime, lump coal, mixed coal, gross coal, run-of-mine coal, recarburizer,
long flame coal, sintering ore,etc.
2/All kinds of mining and stone quarry such as gold ore,white sandstone, lead-zinc deposit,cooper ore, dolomite,Talcum, ,phosphate ore, rock phosphate, slag, basalt,etc,.
3/Aluminium manufacturer such as electrolyte anode
4/Chemical plant such as calcium carbide
5/Power plant such as lignite coal
6/Wet and sticky material such as bauxite, laterite nickel ore,nickel ore, clay.
8/Construction waste,building rubbish,etc.