Features: 1.Every product has a unique Manufacturing Part Number label on the inner package that proves it has been qualified,which include Part Number,Model Number and inspection date information; 2.If you have any questions about the item,please provide us the Manufacturing Part Number for checking,your profits will be guaranteed. 3.U-shaped wheels, thickened steel, 360 degreerotation design, with a maximum load capacity of 200KG/440.92LBS. 4.Made of stainless steel, durable. 5.The outside is reinforced with nuts, which is not easy to deform and is strong and firm. 6.Suitable for collapsible sliding doors, factory gates, industrial machine track works,garden doors, etc. .
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