Tested by 70860 drilling tem of Sinopec East China Petroleum Engineering Liupu Drilling Company, our export type liner and piston perform well. Service time of piston reaches 387.5h while liner is 530h and still can be used.
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山東潤東石油機械有限公司
Tested by 70860 drilling tem of Sinopec East China Petroleum Engineering Liupu Drilling Company, our export type liner and piston perform well. Service time of piston reaches 387.5h while liner is 530h and still can be used.
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