兑水 发表于 2009-9-12 10:18:51

ASTM B 345-2002铝和铝合金无缝管气体石油传输和分配...

B345/B345M-02 Standard Specification for Aluminum and Aluminum-Alloy Seamless Pipe and Seamless Extruded Tube for Gas and Oil Transmission and Distribution Piping Systems
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