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連絡先担当者 Ms. Selina
langfang city, Langfang, Hebei
Langfang Fine Drill CO.,Ltd off HDDÂ drill pipe
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1.. High precision in size and shape
2.. Good low temperature toughness
3.. Excellent comprehensive mechanical properties
4.. High connection strength and seal ability
5.. Large inside diameter of tool joint
6.. High torque resistance
7.. High fatigue strength and long fatigue life
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|
Drill Pipe Diameter |
Thickness Style | Steel Grade |
Pipe Wall Thickness |
Outside Diameter of Thick Side |
Inside Diameter of Thick Side |
| 2 3/8" | External Upset | DZ*0,R**0 | 6/7.*1 | Φ*5 | Φ*6 |
| G**5 | 7.*1 | Φ*5 | Φ*0 | ||
| 2 7/8" | External Upset | DZ*0,R**0 | 9 | Φ*1 | Φ*4 |
| G**5 | 9.*9 | Φ*1 | Φ*9 | ||
| 3 1/2" | External Upset | DZ*0,R**0 | *0 | Φ*8 | Φ*6 |
| G**5 | 9.*5 | Φ*8 | Φ*3.5 | ||
| 4 1/2" |  Internal&External Upset | DZ*0,R**0 | 8 | Φ**7 | Φ*2 |
| G**5 | 8.*6 | Φ**9 | Φ*3 | ||
| External Upset | G**5 | 8.*6 | Φ**7 | Φ*0.5 | |
| 5" |  Internal&External Upset | DZ*0,R**0 | *0 | Φ**0 |
