Regular Tricone Bit 17 1/2" IADC517 for Water/Oil/Gas Well Drilling
China Regular Tricone Bit 17 1/2" IADC517 for Water/Oil/Gas Well Drilling, Find details about China Tungsten Carbide Inserted (tooth) Bit, Insert Bit Manufacturer from Regular Tricone Bit 17 1/2" IADC517 for Water/Oil/Gas Well Drilling