Caustic Soda, Potassium Hydroxide, Calcium Carbide manufacturer / supplier in China, offering China Best Seller Pharmaceutical Grade Stearic Acid Sulfuric Acid 98% H2so4 CAS7664-93-9, Purity 99% Industrial Grade Potassium Hydroxide, Shampoo Additive Sodium Lauryl Ether Sulfate (SLES) 70% and so on.