Caster, Wheel, Airport Trolley manufacturer / supplier in China, offering 136kg Height Adjustable Hand Truck 300lbs Durable Flat Push Cart Four Wheel Foldable Steel Heavy Duty Trolley, 136kg 150kg Full Foldable Multifunctional Hand Trolley 300lbs One Click Folding Platform Hand Truck, 300lbs Heavy Duty Utility Cart 4-Wheels Foldable Moving Platform Hand Truck and so on.