DTH Drill Pipe With API REG Thread

DTH Drill Pipe  DTH drill pipes are widely used in mining,Website: well drilling,geothermal,oil and all kinds of DTH rock drilling,with high quality low carbon steel to ensure good resistance to strengthen and tensile,friction welded to ensure the adapter and pipe connect tightly as a whole set the cyclic extrusion-compression ensure reliable pipe    Specification:(2")50mm   DTH drill pipe  with  API 2 3/8 REG 1000-3000m length 60mm   DTH drill pipe  with  API 2 3/8 REG 1000-3000m length(3")76mm   DTH drill pipe  with  API 2 3/8 REG 1500-3000m length(3 1/2")89mm   DTH drill pipe  with  NC26( API 2 3/8 REG) 1500-3000m length(4")102mm   DTH drill pipe  with  NC31( API 2 7/8 REG) 1500-6000m length(4 1/4")108mm   DTH drill pipe  with  NC31( API 2 7/8 REG) 1500-6000m length(4 1/2")114mm   DTH drill pipe  with  NC31( API 2 7/8 REG)or NC35 1500-6000m length(5")127mm   DTH drill pipe  with  NC38( API 3 1/2 IF) 1500-6000m lengthNo.Specifications (mm)CraftConnection typeDiameterLengthThread typeAPI 2 3/8 REGFriction weldingBox/pinAPI 2 3/8 REGFriction weldingBox/pinAPI 2 3/8 REGFriction weldingBox/pinNC26(2 3/8 IF)Friction weldingBox/pinNC31 (2 7/8 IF)Friction weldingBox/pinNC31 (2 7/8 IF)Friction weldingBox/pinNC31 (2 7/8 IF)or NC35Friction weldingBox/pinNC38(3 1/2 IF)Friction weldingBox/pin

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