铁黄铜焊丝S222<br /> Cu58Sn0.9Si0.1 Fe0.8 Zn Rem.&nbsp; 熔点约880℃。黄铜气焊及碳弧焊用，也可钎焊铜、钢、铸铁&nbsp; RBCuZn-C&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;