... for various applications Vacuum and High Pressure Sintering Industry:Heat Insulation for Hard Metal Sintering, Non Oxide ... 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 turbine ...