... Sintering, Non Oxide Ceramics, Tungsten Carbide manufacturingVacuum Treatment Industry:Heat Insulation for Commercial Heat Treat Furnaces, Hardening ... , Tempering, etc.Crystal Growing Industry:Heat Insulation for Silicon, SiC, Indium Phosphide, Gallium ... Arsenide, Sapphire, Optical Crystals, Solar IngotsSpecial Castings Industry:Heat Insulation for precision casting of DS/SC ...