黑铁丝    选用优质低碳原材料，经过拔丝、退火加工而成，软且抗拉力强。成品涂防锈油，不易生锈，可根据客户要求打成捆，每捆 1-50Kg 不等，也可制作成 U 型丝，截断丝等，内塑外麻包装，主要用作捆绑丝，建筑用丝等。丝号SWG(mm)BWG in mm毫米8#4.064.194.009#3.663.76-10#3.253.403.5011#2.953.053.0012#2.642.772.8013#2.342.412.5014#2.032.11-15#1.831.831.8016#1.631.651.6517#1.421.471.4018#1.221.251.2019#1.021.071.0020#0.910.890.9021#0.810.8130.8022#0.710.7110.70