兑水 发表于 2009-12-2 19:00:20

ASTM F 1734-2003 为避免聚乙烯导气管长期受损用挤出工具、管...

F1734-03 Standard Practice for Qualification of a Combination of Squeeze Tool, Pipe, and Squeeze-Off Procedures to Avoid Long-Term Damage in Polyethylene (PE) Gas Pipe
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