Located in Qingdao city,Qingdao HengZhiYuan Chemicals Co.,Ltd is a Chinese company which specializes in producing and exporting chemicals.The main products include caustic 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. We specialize...