Gold Index: 124
Hebei Ranking Bit Manufacture Co.,ltd. [China (Mainland)]
Business Type:Manufacturer City: Cangzhou Province/State: Hebei Country/Region: China (Mainland)
6 1/2" PDC rock bits tungsten carbide drilling machine for oil drilling
2016-09-07
20" IADC537 new big size hole opener bit/reamer/Assemble reamer bits for rock drilling horizontal directional
6 3/4" IADC217 big size hole opener bits with tricone rock drill bits