Slotted Angle Shelving/light duty racks it framed by common angle iron, is assembled by connective or inserting method Slotted Angle Shelving/light duty racks1) All-purpose angle steel structure, steel panel or wooden floor can be assembled freely 2) The height of each layer can be adjusted by pitch 50mm freely 3) Parts: upright poles, layer plates, corner pieces, pins, special bolts, plastic ...