zzcnhic 发表于 2017-6-18 09:31:06

ASTM B 8 - 11 (2017)

ASTM B8 − 11 (Reapproved 2017) Standard Specification for Concentric-Lay-Stranded Copper Conductors, Hard, Medium-Hard, or Soft

admin 发表于 2017-6-20 12:05:17

谢谢您的分享,金币已奖励!
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