Roller conveyor line : Roller conveyor line is applicable to all types of boxes, bags, trays and other pieces of cargo transport, bulk materials, small items or irregular items need to be placed on the tray or inside the turnover box. This conveyor system can transport very heavy piece of material, or to bear a larger impact load. From the type of drive, the conveyor line can be classified as power rolling line and non-power rolling line. According to the distribution form, it is divided into plane conveyor roller line, tilt conveyor roller line and swerving roller conveyor line. Roller conveyor has the characteristics of simple structure, high reliability and easy maintenance.