Fiber, Ceramic, Rock Wool manufacturer / supplier in China, offering 1000c Thermal Insulation Calcium Silicate Board for Industrial Furnaces China High Density High Temperature, ASTM Standards 1000c Calcium Silicate (Cal-Sil) Pipe Insulation, White 220kg/M3 230kg/M3 Calcium Silicate Pipe Insulation 650c 1000c 1100c and so on.