switch rod insulation 尖轨连接杆绝缘

adjustable switch operating rod 密贴调整杆 ; 道岔密贴调整杆

starter switch push rod 起动机开关推杆

fracture-rod switch [机] 断针开关

rod select power switch 棒选择电源开关

rod movement control switch 棒移动控制开关

switch operating rod 道岔操纵杆

switch-of-point rod 尖轨系杆

adjustable e switch operating rod 密贴调整杆