... fields including Aerospace, Semiconductor, Solar Ingots, Specialist Castings, Metal Composites, Crystal Growing, Hard Metal Sintering, and the Heat Treat Sectors.HSCF ... Furnaces, Hardening, Tempering, etc.Crystal Growing Industry:Heat Insulation for Silicon, SiC, Indium Phosphide, Gallium Arsenide, Sapphire, Optical Crystals, Solar IngotsSpecial Castings ...