Heavy-duty beam-type shelves are usually called heavy-duty shelves, which are assembled by uprights, beams, cross braces, diagonal braces and self-locking bolts, which can effectively prevent shelf instability after bolts are loosened; cross beams are made of special cold-rolled P-shaped closed beams; The structure has the characteristics of simple, reliable, light weight, strong bearing capacity and low cost; when the column card is connected with the vertical column, it is equipped with a specially designed safety pin to ensure that the beam will not fall off under the impact of external forces; The lamellar plate has the characteristics of strong bearing capacity, wear resistance, simple replacement and low maintenance cost.