... Semiconductor, Solar Ingots, Specialist Castings, Metal Composites, Crystal Growing, Hard Metal Sintering, and the Heat Treat Sectors. ... High Pressure Sintering Industry:Heat Insulation for Hard Metal Sintering, Non Oxide Ceramics, Tungsten Carbide manufacturingVacuum ... :Heat Insulation for Silicon, SiC, Indium Phosphide, Gallium Arsenide, Sapphire, Optical Crystals, Solar IngotsSpecial Castings ...