killer007 发表于 2017-8-28 11:45:40

ISO TR 10465-2-2007 Underground installation of flexible glass-reinforced pipes

ISO TR 10465-2-2007 Underground installation of flexible glass-reinforced pipes based on unsaturated polyester resin (GRP-UP) — Part 2：Comparison of static calculation methods




admin 发表于 2017-8-28 13:57:27

谢谢您的分享,金币已奖励!
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