论坛首页 › ASTM 美国材料与试验标准 › ASTM B 172-2007 Rope-Lay-Stranded Copper Conductors Having Bunch-Stranded Member

alldoing1 发表于 2018-5-17 13:07:08

ASTM B 172-2007 Rope-Lay-Stranded Copper Conductors Having Bunch-Stranded Member

ASTM B 172-2007 Rope-Lay-Stranded Copper Conductors Having Bunch-Stranded Members, for Electrical Conductors

admin 发表于 2018-5-17 17:02:37

谢谢您的分享，金币已奖励!

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