II. MAIN MATERIALS AND COMPOSITION
1. Seat material introduction: high density polyethylene (HDPE) as raw material, hollow blow molding, this material has good waterproof and impact resistance, good mechanical strength and chemical stability, Good weather resistance (heat resistance and cold resistance), seat color selection professional coloring masterbatch, can ensure the color lasting beautiful.
2. Beam and chair foot: adopt 60*40*3 high quality square steel, carry on electrostatic powder spray, powder thickness is 60-80 um. according to standard GB/T 1764《 film thickness measurement method The surface of the coating is smooth, no foaming, no pinhole, no crack, no burr and scratch.
3. Folding Mechanism:
Folding Mechanism is made of moulded with Q235, conforms to the GB50017-2003《 steel structure design specification, adopts the company independent research and development has the patent instruction to fold the mechanism, pneumatic fold, in place self-locking, safe and reliable, the movement is sensitive.
4. Description of optional accessories:
- Row number.
- upholstery in plastic
stadiums, schools, multi-function halls, etc.
