The seat plate adopts a single aluminum alloy plate. The aluminum alloy plate is an extruded aluminum profile with a cross-sectional size of 240mm × 55mm × 3mm and a plate thickness of 3mm. The strength standard of the extruded aluminum profile reaches 6063-T5 level or above, and the surface has undergone oxidation treatment with anti slip patterns. It does not change color or oxidize for more than 10 years and has good environmental protection;

4. The stand column bracket adopts 50 × 2mm square tube profiles, which are securely connected to aluminum alloy plates through square tube fittings. Considering the stability of the stand structure, angle iron is not accepted as the stand column bracket.

5. The aluminum alloy plate head adopts a plastic gray envelope with smooth edges and corners on the surface.