| dezhou saigao petroleum machinery co.,ltd. located in shandong dezhou economic development zone. our corporation specializing in design, research and development, processing and manufacturing, sales and export of petroleum machinery equipments, with leading products comprising downhole motors, mud pump components, various subs for drilling tools, blowout prevention,charismas tree, fishing tools, tubing, casing,
special seamless tube, fluid injection pump, various down hole tools and etc. at meantime, ....>> |
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