Assembly consists of thumb screw, hooks, swivel joint, and stem, threaded at one end. 这种总成由翼型螺丝、钩、转接头和杆子组成,在一端上有螺纹。
Vertical Bearing Capacity Behavior of Roll Forming Screw Pile; Assembly consists of thumb screw, hooks, swivel joint, and stem, threaded at one end. 滚压成型螺纹灌注桩竖向承载力性能研究这种总成由翼型螺丝、钩、转接头和杆子组成,在一端上有螺纹。