Tianjin Weiwo Tech Co., Ltd. is a Chinese company which specializes in producing and exporting chemicals. Our main products arecaustic soda, sodium hexametaphosphate, sodium metabisulphite, chrome yellow light/middle/deep, iron oxide red/yellow/black/green, lithopone, titanium dioxide anatase/rutile type, glacial acetic acid, carbon black, sulphur black, pentaerythritol, carboxyl methyl cellulose, zinc oxide, formic acid, oxalic acid, sodium formate and so on.