国外标准
youjian000
第1楼2009/02/20
Withdrawn Standard: ASTM D1457-92 Specification for Polytetrafluorethylene (PTFE) Molding and Extrusion Materials (Withdrawn 1996)WITHDRAWN, REPLACED BY D4894,D4895已作废标准,被D4894和D4895代替
wild53
第2楼2009/05/12
D4894 D4895D4895
wzhbuduo
第3楼2011/01/04
非常感谢!!
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