r级无码福利电影在线观看_亚洲综合天堂婷婷五月_在线观看免费人成视频_美国真人黄色免费毛片

IZJ series crawler pile machine adopts electric crawler design. There are four hydraulic legs before and after the pile machine. It has the characteristics of stable and fast walking, accurate and reliable for pile, simple maintenance and operation. The utility model can realize the construction of various working equipments and methods, such as guide rod diesel hammer, cylinder diesel hammer, vibration hammer, hydraulic hammer, long spiral drilling rig, etc.