... .easy operation 3.high quality 4.high reliability Main featuresJBZ-350B truck mounted drilling rig is designed by our engineers; ... ,mast are setup on the chassis.This rig is a rotary drilling rig with directional circulation, which is equipped with ... exploration, geothermic well and other foundation working, it is populated by domestic and foreign clients. JBZ-350B water well drilling rig(with truck) ...