huanhuan8184 发表于 2016-4-27 16:43:06

ASTM A 106-A 106M-14

ASTM A 106-A 106M-14 Standard Specification for Seamless Carbon Steel Pipe for High-Temperature Service


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admin 发表于 2016-4-28 11:17:30

谢谢您的分享,金币已奖励!
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