Phenyl Silicone Oil, Vinyl Silicone Oil, Silicone Rubber manufacturer / supplier in China, offering Sales Water Glass Additive Waterproof Agent Material CAS 31795-24-1 Potassium Methyl Silicate, Made in China Potassium Methyl Silicate for Waterproof Material Additives, High Quality Potassium Methyl Silicate Nano Water Repellent Surface Treatment and so on.