Description

New products with super long life, high efficiency and wide application. 1) super long life**0 times than cemented carbide drill bits under the same condition. 2) High efficiency-Time of lifting the drilling machine could be reduced sharply, and the average time effciency could be increased more than 2 times 3) Wide range of application-it could have a penetration of rock formation with f≤*2, especially for the rock formation with f=***0