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Hejian Smart Petroleum Machinery Co., Ltd.
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rock roller bit

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Title： rock roller bit 
Unit price： Negotiable
MOQ： Negotiable
Quantity： Negotiable
Delivery date： Since the payment date Days delivery
Contact： Lily Shi （Mr.）    
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Details
GJ series bit adopts metal seal with roller bearing, which can drill stably with middle to low WOB and middle to high RPM.
rock roller bit
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