TCI tricone bit

3-wing PDC concave drill bit

4-wing PDC concave drill bit

5-wing PDC concave drill bit

Five wing arc angle PDC drill

Gasoline mud pump IQ80-180B2-9

Mud pump IQ80-240B-8

Mud pump 80ZB100-11B

Mud pump IQ80-220B-4

Diesel mud pump IQ80-180B-2

Gasoline mud pump IQ65-170B-4Q

Diesel engine cylinder liner p