兑水 发表于 2009-12-7 10:40:20

ASTM F 2207-2002 用于金属煤气管修复的准地方处理管....

F2206-02 Standard Specification for Fabricated Fittings of Butt-Fused Polyethylene (PE) Plastic Pipe, Fittings, Sheet Stock, Plate Stock, or Block Stock
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