parking secondary brake knob
secondary parking brake knob
parking brake control knob
parking brake switch knob
parking brake valve control knob
unit conversion brake shoe(or brake pad)force(the ratio of conversion brake shoe force to mass)
brake drum [= brake pulley
brake pads on disc brake
Brake Unit with Parking Brake
equal effective brake shoe(or brake pad)force for one locomstive or car
steering clutch and brake and foot brake controls linkage
wheel brake and parking brake group
120 Type Brake Control Valve Test Rack
ABS Anti-lock Brake System
ABS hydraulic-brake system