... carbon felt, graphite felt, rigid graphite board, vacuum thermal chamber, Hot Zone and CFC for Vacuum Furnace, High Temperature Sintering Furnace, Solar Silicon ... , rigid graphite board and CFC, Heat Insulation Materials Using in Vacuum Furnace, inert atmosphere furnaces, crystal growth furnace, multicrystalline DSS, ... chinahaoshi.net.cnHSCF in China: http://www.haoshicf.com HSCF vacuum heating chamber