4.Production Feature and Application of Diamond tip drill bit
Use high quality PDC cutters,will has longer life and fast drilling speed,used for anchor net supporting of coal mining.
5.Deliver,shipping and serve of Diamond tip drill bit
6.FAQ
Q: Are you trading company or manufacturer ?
A: We are factory.
Q:How abou your quality control?
A:We pay more attention to the quality control,focus on raw mater