Polyurethane bed liner has strong shock absorption,reduce noise and vibration,great elasticity,maximum protection of transport equipment.High anti wear performance,7 times wear resistance than general carbon steel,3 times than general rubber,2 times than polyurethane only.Excellent processing technology,easy to adjust the hardness,easy to operation to reduce operation time,reduce operation cost.Fire resistance,in winter,the material doesn't stick to the hopper and easy to unload.