ygs67 发表于 2018-3-10 13:17:49

ASTM F2788 F2788M-18

ASTM F2788 F2788M-18 Standard Specification for Metric and Inch-sized Crosslinked Polyethylene (PEX) Pipe.

admin 发表于 2018-3-12 14:40:01

谢谢您的分享，金币已奖励!
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