... drilling rig The Product is fit for the specification of API Spec 4F,7K,8A, Oil Rig Type and Basic Parameters Excellent API drilling ... rig1. Motorized Rig: To realize the intelligent control the rigs, the rig with DC power ... center-controlled, to realized automatic feeding for drilling.3. Mechanic Rig: it takes the diesel engine as the ... 7.5(25) 9(30) API drilling rig