equalizer pin bore 平衡器销孔

leading truck equalizer pin [铁路] 导轮均衡梁销

equalizer bar pin 平衡杆销

equalizer bar pin bore 平衡杆销孔

equalizer bar pin joint 平衡杆销节

equalizer bar end pin 平衡杆端销

equalizer bar center pin 平衡杆中心销

equalizer spring pivot pin 平衡器弹簧铰接销

equalizer bar end pin ear 平衡杆端销耳