Product Features:
1.high- elastic
2.rigid
3.automatically adjustable
4.stable
Business Terms:
Port: QINGDAO
Minimum Order Quantity: 50 Pole/Poles
Supply Ability: 2000 Pole/Poles per Day
Payment Terms: L/C,T/T
Contact Supplier
1.high- elastic
2.rigid
3.automatically adjustable
4.stable
Port: QINGDAO
Minimum Order Quantity: 50 Pole/Poles
Supply Ability: 2000 Pole/Poles per Day
Payment Terms: L/C,T/T
Contact Supplier
Packaging Detail: 1.wooden case 2.standard export bundle packingor or as your requirements
Delivery Detail: Within 15 days after the deposit
Extention Rod is introduced
Material of rod body: geological alloy pipe
Material of connector: first-class alloy constructional steel
Craft: thermal refining in vacuum, which greatly improves the fatigue resistance and shearing strength.
Rod body craft: friction welding, which improves the bending strength, the firmness of the drill rod as well as the lifetime.
Made-to-order available.
Extention Rod specification
| NO. | Specification(mm) | Craft | Connection type | ||
| Diameter (mm) | Length (mm) | Thread type | |||
| 1 | 34 | 500~3000 | Tapper thread | Friction welding | Box/pin |
| 2 | 42 | 500~3000 | Tapper thread | Friction welding | Box/pin |
| 3 | 50 | 500~3000 | Tapper thread | Friction welding | Box/pin |
| 4 | 63.5 | 500~3000 | Tapper thread | Friction welding | Box/pin |
| 5 | 73 | 500~3000 | Tapper thread | Friction welding | Box/pin |
| 6 | 89 | 500~3000 | Tapper thread | Friction welding | Box/pin |
| 7 | 35 | 500~3000 | Square inside thread | Cutting thread | connector |
| 8 | 42 | 500~3000 | Square inside thread | Cutting thread | connector |
| 9 | 50 | 500~3000 | Square inside thread | Cutting thread | connector |
| 10 | 60 | 500~3000 | Square inside thread | Cutting thread | connector |
Extention Rod photo
Extention Rod certificate
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