C2680优质黄铜板 C2200高强度黄铜板
H65精密黄铜管 C2100..
H59国标黄铜棒 H57非标..
T3大直径环保紫铜棒 C11..
T2特硬紫铜带 C1020紫..
TU1无氧紫铜管 T2国标精..
C2720高精黄铜带 H65..