zzcnhic 发表于 2017-6-20 23:24:54

ASTM G18 − 07 (Reapproved 2013)

ASTM G18 − 07 (Reapproved 2013)
Standard Test Method for
Joints, Fittings, and Patches in Coated Pipelines

admin 发表于 2017-6-21 10:36:36

谢谢您的分享,金币已奖励!
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