Sodium Formate, Calcium Formate, Acetic Acid manufacturer / supplier in China, offering Factory - Direct High - Purity Chinese Sodium Sulfide 60% for Dye Intermediate Production, 99.5% High Purity Aminosulfonic Acid - Ideal for Precision Metal Cleaning and Rust Removal, 99.6% High Purity Chinese - Made Industrial Oxalic Acid - Ideal for Dye Reduction & Bleaching and so on.