Beijing Huasheng Metal Materials Co., Ltd. yakavambwa muna 2003. Kambani iyi yave nenguva yakareba ichishanda mukushanda kwesimbi dzisina ferrous (tungsten, molybdenum, tantalum, niobium, nickel, cobalt, ferro alloys uye vira remoto). Main kugadzirwa uye kugadzirisa: tungsten uye molybdenum pr ...
Verenga zvimwe