Caster, Caster Wheel, Trolley Wheel manufacturer / supplier in China, offering Kingpinless Caster Wheel 4 5 6 8 Inch Aluminium Core Polyurethane Wheel Yellow Industrial Caster Heavy Duty Svivel Caster, Top Plate with Brake Black Rubber Wheels 4 5 6 8 Inch Wheel Industrial Caster Wheel for Trolley Heavy Duty Trolley Caster, Rubber Wheels Steel Core Steel Core Black Wheel Heavy Duty Trolley Caster 4 5 6 8 Inch Fixed Wheel and so on.