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  Ball-and-seat
  DM API valve
  High-pressure plug valves
  High pressure sluice valve
  Throttle valve
  Mud pump valve
  Expansion valve
  Flat valve
  Safety valve
  Elbow, tee-junction
  Drilling accessories
  Mud pipeline
Jianhu Zhongda Petroleum...
ADD: No. 61, One Road, Jianhu Private Industrial...
Tel: +86-515-86165126
Fax: +86-515-86165126
Contact: Liu Zhizhong(manager)
Mobile: +86-13962026481

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Time:2015-02-26

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