driver spring saddle [铁路] 动轮弹簧鞍

centering spring saddle 复原弹簧鞍

spring saddle centering device [铁路] 弹簧鞍座复原装置

saddle spring 坐垫弹簧 ; 鞍式弹簧 ; 鞍座弹簧

spring mattress saddle 弹簧软垫

spring saddle weghting 弹簧鞍架加压

saddle spring detail 坐垫弹簧

spring mattress saddle detail 弹簧软垫

Saddle shaped spring washer 鞍形弹性垫圈