H62高精黄铜棒 13mm 14mm 15mm 16mm
H62高精黄铜棒 22mm ..
H62高精黄铜棒 13mm ..
H62高精黄铜棒5mm 6m..
H62高精黄铜棒 17mm ..
SUM24L易切削钢圆棒
44SMN28易切削钢圆棒