兑水 发表于 2009-10-24 14:51:08

ASTM D 6457-2004 聚四氟乙烯(PTFE)制挤压成型和压模成型的棒...

D6457-99e1 Standard Specification for Extruded and Compression Molded Rod and Heavy-Walled Tubing Made from Polytetrafluoroethylene (PTFE)
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