water well drilling rig AVT-KW20 1.New type feeding system 2.Famous brand engine 3.Reliable hydraulic pump system water well drilling rig AVT-KW20characters:1.New type feeding system2.Famous brand engine 3.Reliable hydraulic pump system CONCRET DETAILS:KW series Wells rig is a light, high efficiency, multi-function hewn hole drilling equipment, it is mainly applied to drill hewn cisterns, ...