... ,they are made of 99.9%min. TP2 copper. Copper mould and crucible for Vacuum arc remelting furnace The copper moulds are ... National Erzhong Group Co.,Dongbei Special Steel Group Co., Ltd.,Daye Special Steel Co.,Ltd.,Xining Special Steel Co., Ltd.,Tiangong International Co., Ltd., etc.,and Tiangong International Co., Ltd. always place ...