... of 1965, our company give the birth of the first workover rig in P. R China, with the name of XJ30. ... in 1958, the company gave of the FIRST oil field WORKOVER RIG in People's Republic of China. Through 50 years' ... products include Workover rig, drilling rig, live well service rig, No Guyline well service rig, water well drilling rig, core drilling rig, sand washing truck, flushby rig, dewaxing ...