sanmaosjy 发表于 2017-11-8 15:21:41

DIN EN 1492-4 (2009-02)(德文)

DIN EN 1492-4 (2009-02)(德文)
Textile slings - Safety - Part 4: Lifting slings for general service made from natural and man-made fibre ropes

admin 发表于 2017-11-9 13:44:34


谢谢您的分享,金币已奖励!
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