... racks in China with many years. Slotted angle shelf is made up of slotted angle, tray, bolts&nuts and plastic foot. ... widely used in supermarket, warehouse, factories, industries, etc.Speicification of slotted angle shelf1.Material: high quality steel2.Size as the follow ... height can be adjustable by the pitch of 50mm3.Parts:upright,layer plates,corner plates,special bolts,plastic footingFor more ...