MSS SP-72-2010 法兰端或对焊端通用球阀.pdf
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分享时间:2011-10-14
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MSS SP-72-2010 法兰端或对焊端通用球阀Ball Valves with Flanged or Butt-Welding Ends for General Service Standard Practice
MSS SP-72-2010 法兰端或对焊端通用球阀Ball Valves with Flanged or Butt-Welding Ends for General Service Standard Practice