PDC Core Bit
Crossing bit specialize in producing PDC core bit,diamond bit,Tricone bits, PDC bits, HDD hole opener, etc. inquiry,Reasonable price ,PDC core bit with reverse circulation,Ps: Special design is available upon your requirement.
Application of coal mining drill bit PDC none core drill bit for coal mining
This group of products is used to penetrate the degassing hole, drain hole, and grouting hole of coal mine, water canservancy and hydropower, road construction, bridge and building.
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