PVC Resin, Paraffin Wax, Calcium Carbide manufacturer / supplier in China, offering Factory Wholesale Sodium Tetraborate Borax Decahydrate 95% CAS 1303-96-4 Borax, Industrial Grade Sodium Hydroxide Caustic Soda Flakes 99%/CAS: 1310-73-2, Food Grade Cooper Sulfate Anhydrous Monohydrate Powder Cu2so4 Bulk Blue Crystals Price Pentahydrate Copper Sulfate and so on.