KEYSTONE SHOCK CONTROL

UNITS USED IN THE CONSTRUCTION OF UNDERFRAMES OF RAILWAY FREIGHT CARS TO ABSORB AND LESSEN THE FORCES OF COLLISION-NAMELY, SPRING ASSEMBLIES, SPRING ANCHORS, HYDRAULIC CYLINDERS, STATIONARY AND FLOATING SILLS, SILL GUIDES, TIE PLATES, BOLSTERS, PISTONS AND PISTON STOP ASSEMBLIES