Guilin Star Diamond Superhard Material Co., Ltd. was founded in 2007, located in scenic Guilin national High-Tech Zone in southern China. Our company has been identified as the National High-Tech Enterprise that specializes in the research, development and production of polycrystalline diamond compacts (PDC) and PDC bits. Our proprietary products are GK PDC cutter inserts and SDB PDC cutter inserts. In addition, our PDC bits include PDC oil drill bits, PDC coring bits, PDC drag bits, and so on. These products are all widely used in the oil well drilling, geology exploring, coalfield mining...