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发表于 2009-12-4 14:48:55
ASTM F 1970-2005 在聚氯乙烯（PVC）或氯化聚氯乙烯（CPVC...
F1970-01 Standard Specification for Special Engineered Fittings, Appurtenances or Valves for use in Poly (Vinyl Chloride) (PVC) or Chlorinated Poly (Vinyl Chloride) (CPVC) Systems