We are special in products as following: CALCIUM CARBIDE (CaC2),DICYANDIAMIDE(C2H4N4>99.5),SODIUM SULPHIDE(NaS),-SINONGOLIA-SODIUMHYDROSULPHIDE (NaHS),SODIUM CARBORNATE(Na2CO3),SODIUM BICARBONATE(NaHCO3), SODIUM HYDROXIDE(NaOH), SODIUM SULFATE(Na2SO4),-SINONGOLIA SODIUM SULFITE (Na2SO3), ALUMINUM SULPHATE (Al2(SO4)3>15.6),AMMONIUM CHLORID (NH4CL), BARIUM CHLORIDE(BaCL.2H2O), SODIUM METABISULPHITE (Na2S2O) 5CHROMIUM SULPHATE(2Cr(OH)SO4), citric acid, formic acid, oxalic acid, acetic acid, barium sulphate,barium chloride