铜CU:60.0~62.0 锌ZN:余量铁FE:0.3 铅 PB:2.5~3.5铝AL:0.05 镍NI:0.3锡SN:0.2 其它元素总和:0.2供货状态:M、R360、R340、R400、R480、R550直径:2~80
