... 4.have in stock extension rod,mud pump parts for oil well drilling,tigerrig brand If you want ... , single-action, heavy-duty, high-pressure drilling pump with a maximum power of 2,200HP, maximum ... customer resources,is prior;4.working near the oil field,thus convenient to visit customers;5.capacity of ... ZJ40,ZJ50,ZJ70,ZJ90 and rig parts:Mud pump,Hook,Rotary Table,Swivel,Crown block,Travelling Block ...