兑水 发表于 2009-12-2 20:03:09

ASTM F 1760-2001 共挤聚氯乙烯无压塑料管技术规范

F1760-01 Standard Specification for Coextruded Poly(Vinyl Chloride) (PVC) Non-Pressure Plastic Pipe Having Reprocessed-Recycled Content
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