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DTH Drill Pipe O.D.114mm (No Flat)
- Outer Diameter : 114mm:
- Length: 6000mm:
- Wall Thickness: 8.5mm:
- Thread Pin/Box:API 3-1/2REG,NC35 .:
- Materials: 35CrMo for thread connect + G105 for drill pipe:
- Process: : Upsetting treatment to reduce the weight of rod while keep the strength on the weld; Auto changed rod: