There are many causes inducing rock bit cone break, in which the effect of its machining on the cone is more serious.
造成钻头牙轮破裂的原因是多方面的，其中钻头机加工对牙轮开裂的影响较大。
There are many causes inducing rock bit cone break, in which the effect of its machining on the cone is more serious.
造成钻头牙轮破裂的原因是多方面的，其中钻头机加工对牙轮开裂的影响较大。
应用推荐