1) Purity 99% min 2) BV ,SGS,REACH 3) Free Sample 4) 50kgs Net Weight Plastic Woven Bag 5) We Are Manufacturer About us: Tianjin Shengxinhai Chemical Co., Ltd. was constructed in 1998 and mainly produces inorganic chemical products, like caustic soda in different purities and appearances (96%,99% and flakes, solid,peals); anhydrous sodium sulfite, sodium bisulfite, ... If you are interested in ...