S 221斯米克焊丝 Cu60 Sn1 Si0.3 Zn Rem. Melting point is about 890℃. Gas welding and carbon arc welding of brass, also braze welding of copper, steel and cast iron. 熔点约890℃。黄铜气焊及碳弧焊用,也可钎焊铜、钢、铸铁 PP-R807耐热钢焊条 PP-TIG-J50电力焊丝 德国蒂森WB36焊条 ***51***焊条 ARCFCW9066耐磨焊丝 HB-YD467耐磨焊丝