Chengdu COBRA Trading Co., Ltd.
Add.: No. 323, Shi Ji Avenue, Economic Development Zone, Chongzhou, Chengdu City, Sichuan Province
Therefore,our product provides the drilling bit with strong and non-abrasion brake during the process of drilling a borehole. The brake force is changeable which enables the drilling tool to have a stable and smooth contact with the rotary table. So the whole drilling process almost can de done without application of the main brake.Read More