gmt88 发表于 2013-8-19 00:47:33

ISO 15546:2007 Petroleum and Natural Gas Industries - Aluminium Alloy Drill Pipe

ISO 15546:2007(E)
Second Edition
2007-05-15
Petroleum and Natural Gas Industries -
Aluminium Alloy Drill Pipe

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admin 发表于 2013-8-19 09:48:17

谢谢您的分享，金币已奖励！

21319817 发表于 2013-8-28 19:45:23

感谢楼主，楼主是个厚道人
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