117, Rd 3 South, ETDZ Longquany
1. Ten years professional experience2. ISO 9001:2008 & API Certificate3. Strong design and manufacturing capability4. Product size can be from 26 inches to 3 inch5. Designs 600+Located in Chengdu, our company specializes the new project development, manufacture, marketing after-sales service of PDC Dill Bits, Chengdu ...
3-26" PDC Drill Bit,PDC Hole opener,3-26" Tricone bit,Natural diamond bit,Core drill bit,Steel body oilfield bit, 3 7/8", 4 1/2", 3/4", 5 5/8", 6", 6 1/8", 1/4", 7 8 3/8", 9", 9 10 11", 11 12", 12 13 14 15 16", 16 17", 17 18 20", 22", ...