DTH drill pipes are widely used in mining,water 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
76mm, 89mm, 102mm, 114mm,
1000mm, 1500mm, 2000mm, 3000mm,
2 3/8’’ API REG, 2 7/8’’ API
REG, 3 1/2’’ API REG, 4 1/2’’ API REG，2 3/8" API IF, 3 1/2" API IF; BECO 6'', BECO
Other spaecial size can be
customized by customer’s drawing.
Advanced heat treatment
technology and friction welding mahcine.