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Shandong Dahang Petroleum Engineering Co., Ltd.  

Gold Index: 1972

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Drill collar Drill collar 

Place of Origin: Shandong, China (Mainland) 
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Drill collar is seated between drill bit and dill pipe or drill bit and heavy weight drill pipe. It is mainly used to provide bit pressure for drill b

Drill collar is seated between drill bit and dill pipe or drill bit and heavy weight drill pipe. It is mainly used to provide bit pressure for drill bit and control well deflection. It is usually use high-grade alloy steel as material. Now in China there are also collars using rolled steel bars as material, made by heat treatment machining. Wall thickness of these collars are 4 or 6 times of drill pipe,having large stiff.


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Company Info

Shandong Dahang Petroleum Engineering Co., Ltd. [China (Mainland)]


Business Type:Manufacturer, Trading Company
City: Dongying
Province/State: Shandong
Country/Region: China (Mainland)

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