Product features; gas-assisted injection molding, split seats, spring dump, hanging installation Main material; polypropylene (PP), high-strength aluminum alloy, hot-rolled plate, hot-rolled profiles Size parameters; width X deepth X height 450X420X800 Using venue; all kinds of indoor field, museum Installation requirements; step height 280mm - 650mm, step width ≥ 800mm, center distance 470mm-510mm Additional features; handrails, cushions, cup holder, antistatic Seat with shared handrails, split flap seat. The foot is made of aluminum alloy die-casting, the surface of the phosphating treatment after the spray (or paint) treatment, never rust, with M10 × 80 expansion bolts and stadium stands fixed. Seat color according to user selection. Installation: side hanging type, flat ground floor type Size: seat height 800mm, seat cushion depth 420mm, cushion width 450mm Cushion chair surface 450 × 420mm seat back pad width 440mm back pad height 446mm back cushion 440 × 446mm Center distance: 470 ~ 500mm Style: split seat (flap chair), chair spring return (near the back), chair legs can even arm Appearance: nice, comfortable seat, reasonable structure, strong strength Ingredients: Polypropylene M02 Chair: high-quality aluminum die-casting forming, installation; vertical, hanging, (with spring flip). Fixed: M10 × 80 expansion bolts fixed