Drilling tools advantages：

1，Matching with all type of rotary drilling rig, high efficiency, easy maintenance, long service life.

2，Applicable for different soils conditions.

3，The cutting angle of drilling bit, bucket teeth and roller bit are well designed, Wear protection: hard facing or wear strips.

Kelly bar advantages：

1，Top quality of steel tube, welding wire, drive key and kelly stub etc. ST52, 35Crmo, Hardox500, forged technology are making reliable Kelly bar.

2，Special heat treatment, robot welding machine, leveling adjustment platform are making high strength Kelly bar.

3，Rich experiences, perfect design and customized services will making the suitable kelly bar for you.

Casing tube advantages：

1, S355 and 25Crmo material for casing joint：welding and casting technology.

2, Casing shoe with WS39 casing teeth, customized for different length with hard facing or wear strips for long service life.

3, Diameter from 500mm to 3000mm(customized).