空气包自动气动增压充气装置的研制为钻井泵的正常工作和安全优质钻井提供了可靠保证。
The development of automatic and air driven boost device for air chamber of drilling pump will provide reliable assurance for the normal working of drilling pump and safe and high quality Dr...
空气包自动气动增压充气装置的研制为钻井泵的正常工作和安全优质钻井提供了可靠保证。
The development of automatic and air driven boost device for air chamber of drilling pump will provide reliable assurance for the normal working of drilling pump and safe and high quality Dr...
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