日本熟女诱惑中文字幕,日本五十路有码中文中出,国产成+人+综合+亚洲专,精品国产乱子伦一区二区三区最新章

KW30 geotherm water well multifunction drilling rig is after market research design can drill 300m hole drilling equipment.It was based on mature KW10/KW20 geotherm water well multifunction drilling rig upgrade one lightweight, efficient, multi-function device of surface drill equipment, which is mainly applied to drill water wells, agricultural irrigation wells, geothermal air conditioners hole and other uses of the well hole.Optimization of the hydraulic system,using famous factory hydraulically-operated valve,Ensure the jumbo stable performance.Reasonable improvement of carriage parts,increase the wear plate,reduce the wear in the drilling,prolong the service life.Powerful high torque hydraulic rotary motor and big diameter hydraulic cylinder propel,guarantee that the drilling rig reliable operational performance.