
Tungsten alloy guard strip for drill has excellent characteristics such as resistance to scratch, aging, impact, which will not break even under strong impact at low or high temperature. It is usually embedded around the bit, which plays a very good protective role, and then increases the service life of the bit, which is widely used in the field of geology and mining. In a certain mining area, there are both “skid” stratum and “brittle and broken” characteristics in the…