Cangzhou Zhongyou Drilling Tools Co., Ltd.
Cangzhou City · Hebei Province · People's Republic of China
Kellys; Drill Collars; Heavy Weight Drill Pipe
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Heavy Weight Drill Pipe
- Standard
- API-7-1
- Product use
- Drilling & hoisting
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Transfer torque and lifting force downhole, using drilling tools, structures and circulation systems to reach the reservoir.
Standard description (API source text):
Rotary Drill Stem Elements
Names and standard mappings come from the API Composite List search snapshot. Product-use groups and Chinese reading aids are OFMP editorial additions, not official API classifications or translations; original English names are retained for comparison. Category snapshot: 2026-10-10
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