Beijing Huasheng Precious metal Materials Co., LTD., oo la aasaasay 2003, ayaa ku hawlan biraha non-ferrous (tungsten, molybdenum, tantalum, niobium, nickel, cobalt, ferroalloy iyo lacag) muddo dheer. tungsten iyo molybdenum, tantalum iyo niobium pro ...
Akhri wax dheeraad ah