QAl9-4上铜套

QSn10-1铜套

C83600 / ZCuSn5Zn5Pb5铜环

CusSn12Pb铜套

精加工C83600 / ZCuSn5Zn5Pb5螺母

C93700/QSn10-10

ZCusn5Zn5Pb5毛坯

Qsn10-10毛坯