telescopic screw

1 2 3 4 5 ... 拉杆天线^ telescopic rod antenna 套筒螺丝^ telescopic screw 伸缩筒式减震器^ telescopic shock absorber ...

请教有关螺丝的三个名词， 谢谢... ... tapping screw 自攻螺钉 telescopic screw 套筒螺旋 telescopic feed screw 伸缩进刀螺旋 ...

直角三角形_馆档网 ... "套筒伸缩管"," telescopic pipe" "套筒伸缩螺旋"," telescopic screw" "套筒伸缩轴"," telescopic shaft" ...