... Materials Using in Vacuum Furnace, inert atmosphere furnaces, crystal growth furnace, multicrystalline DSS, single crystal furnace, High Temperature Sintering Furnace, and much more Thermal ... Heat Treat Furnaces, Hardening, Tempering, etc.Crystal Growing Industry:Silicon, SiC, Indium Phosphide, Gallium Arsenide, Sapphire, Optical Crystals, Solar IngotsSpecial Castings ...