兑水 发表于 2009-12-4 08:18:12

ASTM F 1924-2005 控制外径聚乙烯输气管道和导管塑料机械性...

F1924-01e1 Standard Specification for Plastic Mechanical Fittings for Use on Outside Diameter Controlled Polyethylene Gas Distribution Pipe and Tubing
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