zcusn5pb5zn5[zcusn5pb5zn5锡青铜] 2023-06-26 05:19:35 8 ●ZCuSn5Pb5Zn5(5-5-5)铸造锡青铜化学成份:铜 Cu :其余 锡 Sn :4.0~6.0 锌 Zn:4.0~6.0铅 Pb:4.0~6.0 磷 P:≤0.05 镍 Ni:≤2.5 铝