论坛首页 › ASTM 美国材料与试验标准 › ASTM A489-12 Standard Specification for Carbon Steel Lifting Eyes

ygs67 发表于 2015-11-9 15:25:51

ASTM A489-12 Standard Specification for Carbon Steel Lifting Eyes

ASTM A489-12 Standard Specification for Carbon Steel Lifting Eyes

admin 发表于 2015-11-9 16:03:26

谢谢您的分享,金币已奖励!

nbjwbzj 发表于 2016-7-20 10:25:06

谢谢分享！！！！！！！

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