1. The horizontal bar between the swing columns is a 40 * 60 square tube with a wall thickness of 1.5mm.
2. Fixed crossbar 30 * 50 for gear shift, with a wall thickness of 1.5mm.
3. Slide support rod 25 * 25MM square tube, wall thickness 1.5MM, 19 round tube, wall thickness 1.0MM.
4. Swing crossbeam 48 round tube, wall thickness 1.6mm.
5. Swing column 38 round tube, wall thickness 1.2mm.
6. Swing triangle connecting pipe 25 round pipe, wall thickness 1.2mm.
7. Staircase frame 25 round tube, wall thickness 1.2mm, nut nylon locking stainless steel hexagonal cap nut M8 \ M10.
8.roof waterproof and UV resistant Oxford cloth.
(Take SW03 as an example)
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