Heavy warehouse shelves are assembled by columns, beams, cross braces, diagonal braces and self-locking bolts, which can effectively prevent the instability of the shelves after the bolts are loosened; The beam generally adopts the special cold-rolled P-type closed beam; The special 3-fork pendant is connected with the column card. At the same time, it is equipped with L-type safety pins, which can ensure that the beam will not fall off under the impact of external force; The laminate adopts the international strip laminate, and can also be used directly on the pallet at the same time. · The shelf bearing capacity is strong, wear resistance, simple replacement and low maintenance cost.