it is named MIDDLE-DUTY RACK for my matched picture.
it is delicately manufacturer, scientifically
structured, easy to assemble and disassemble, boltless and adjustable , each layer can bear 200-300kg.
the common sizes as follow:
Height:1500 1800 2000
width: 470 600 720 800
length:1200 1500 1800
also the specification is can be adjusted as your request.