... , Metal Composites, Crystal Growing, Hard Metal Sintering, and the Heat Treat Sectors.HSCF can also research and develop new carbon materials ... Tungsten Carbide manufacturingVacuum Treatment Industry:Heat Insulation for Commercial Heat Treat Furnaces, Hardening, Tempering, etc.Crystal Growing Industry:Heat Insulation for Silicon, SiC, ... .net.cnHSCF in China: http://www.haoshicf.com HSCF factory photo