... .High purity We manufacture all set of graphite heating systems used in monocrystal silicon and polysilicon industrial ... graphite crucible,crucible support, sintering boats used in metallurgy,heating equipments,heat insulation screeens moulds, heat shield, flow guide ... .minisite.productShow(); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); graphite heating components for polysilicon furnace