- drill bit
- 2017-01-14 17:22
- We are specializing in manufacturing and supplying drilling rigs parts, Adapters, DTH bit, button bit, drilling bit, DTH
- hammer
- 2017-01-14 17:22
- We have our own brand of GD series and GM series high air pressure DTH Hammers, There are 2.5", 3.5", 4", 5", 6" and 8"