LUBRICATING STRUCTURE FOR GAUGE-CHANGEABLE WHEELSET AND GAUGE-CHANGEABLE WHEELSET
LUBRICATING STRUCTURE FOR GAUGE-CHANGEABLE WHEELSET AND GAUGE-CHANGEABLE WHEELSET
LUBRICANT CONSTRUCTION FOR VARIABLE WHEELSET AND VARIABLE WHEELSET
WHEEL MOUNTING BUSHING FOR VARIABLE-GAUGE WHEELSET, AND VARIABLE-GAUGE WHEELSET
WHEEL MOUNTING BUSHING FOR VARIABLE-GAUGE WHEELSET, AND VARIABLE-GAUGE WHEELSET