Long span shelf (middle-duty racking) Adopt the structure that the beam hitching on the frame, the beam of this kind rack can be easily adjusted by step of 50mm. This kind of rack is more bearing and longer beams, usually the bearing between 350kgs and 800kgs. Features: 1) luxurious and elegant 2) optimizes warehouse space 3) the layer can be steel plate or wood plate 4) the height can be adjusted easily by 50mm one pitch 5) easy to assemble without any screw thread connectors Long span shelf /medium-duty racking: film + cardboard
