亚洲av成人久久久久,中文字幕日韩精品欧美一区,精品无码一区二区三区电影,亚洲人成在线播放网站,性欧美视频videos6一9,亚洲一区二区经典在线播放,97人妻无码一区二区精品免费,亚洲精品久久久久玩吗

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.