Supplier: Chemicals such as: glacial acetic acid, chromium trioxide, pentaerythritol, oxalic acid, formic acid, sodium formate, chrome oxide green, sodium metabisulphite, polyaluminium chloride (PAC), aluminum sulfate, sodium tripolyphosphate (STPP), sodium hexametaphosphate (SHMP), aluminum oxide silicate, titanium dioxide, zinc oxide, lithopone, zinc sulphate, calcium chloride, sodium hydroxide flakees, caustic soda, calcium carbide, iron oxide red, boric acid , zinc sulfide, calcium oxide, sodium acetate, silica hydrated, kaolin, dimethylaniline, sodium nitrate, sodium nitrate