well drilling rigs 1.first alibaba onsite check supplier 2,world-advanced devices 3, durable parts 4. easy to operate ... /min)22,59,86,126Torque(kN.m)13.7, 5.1, 3.5, 2.3Effective Height of Rig(m)14Load of Rig ... ,4.1(Working State) 5.65,4.15,16.7 2,usesit is traditionally used in china for construction and agriculutural ...