Silicone Oil, Polysilazane, Precipitated Silica manufacturer / supplier in China, offering Iota 54 Diphenyl Dimethicone Phenyl Silicone Oil with High Refractive Index, Premium Fluorosilicone Rubber Gum (IOTA-110F) for High/Low Temp Oil & Chemical Resistant Seals (-60° C to 200° C), Phenyl Methyl Silicone Oils Iota 250-30 with Good Resistance to High Temperature and so on.