1, the material used in the shelf are all from domestic quality steel Q235B, and the factory by rolling, its rigidity and strength are in line with the industry standards of the department of machinery.

2. The hole spacing of shelf column is 75mm, and the hole spacing accumulation error is ±2mm from the first hole to the tail hole.

3, shelf surface after degreasing pickling - phosphating and then electrostatic spraying, thermosetting epoxy resin coating powder, coating thickness of 60 microns, its quality according to the national standard gb6807-86 standard. Surface

4. Shelf manufacturing accuracy: the inner and outer bending of the column should be less than 1/1000l, and the deflection of the beam load should be less than 1/250l.