Phenolic Resin manufacturer / supplier in China, offering Industrial-Grade Instant Sodium Silicate Fast Dissolving Granules/Powder High Purity for Refractory/Ceramic/Detergent RoHS & ISO Certified, Hollow Glass Microspheres with Low Density of 0.15-0.6g/Cm ³ and High Strength of 5000-18000psi Are Used as Insulation and Lightweight Fillers for Composit, High Purity Calcined Alumina Powder Hot Pressed Refractory Material Diaphragm Ceramic Substrate Ceramic Thermal Conductivity Grinding and Polishing and so on.