Casters, Industry Caster, Polyurethane Casters manufacturer / supplier in China, offering 2/4 Tons Ultra Heavy Duty Industrial Caster Wheel 5 Ton Cast Iron Double Wheels Casters PU New 3 Ton Caster Wheel, Carsun 6 Inch Modified Nylon Wheels with Ball Bearing Heavy Industrial Casters for Carts Made of Steel, Heavy Duty Stainless Steel Industrial Caster 5-Inch White Nylon Wheel Rigid Caster and so on.