兑水 发表于 2009-11-29 16:19:58

ASTM F 1199-1988 铸造(各种温度及各种压力)和焊接管道过滤...

F1199-88(1998) Standard Specification for Cast (All Temperatures and Pressures) and Welded Pipe Line Strainers (150 psig and 150°F Maximum)
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