1.mining,water well, geothermal and all kinds of dth rock drilling.
2. match to all kinds of dth drill rig
1. Materail:high quality low carbon steel to ensure good resistance to strench and tensile
2.Outside Diameter:from 60mm to 114mm, large diameter range
3.Wall Thickness: two standards to suit for different requirements from domestic and international market.
4.Length: 2m, 3m, 4m,6m and 9m to suit for different project requirement
5.Process: friction welded to ensure the adaptor and pipe connect tightly as a whole set
the cylic extrusion-compression ensure reliabile pipe
6.Thread: API standard to ensure good adaptibility to your drill rig or hammer
7.staightness of pipe is high
8. the weight is less to reduce the burden to equipment.
Any crake in the early age can be replaced.
the company responses for any quality problem caused by material and maching.