1)angle steel upright
2)easy to assemble and dismantle
3)access goods by human being
4)widely used for light goods

The slotted angle shelving units are completely dismountable which means that they can be modified or expanded height and length-wise. The system is ideal for the manual storage of light and even relatively heavy loads. Each tier of rack can load 100-200kg. The height of it can be adjusted freely every 50 mm to meet your needs. Slotted Angle Shelving also is one kind of light duty racking, and also is called All-purpose Angle Shelf.