1 Seat, seat back shell: inside the back, shell, the seat is formed by polypropylene multi-element material, with thickness of not less than 6mm. The outer plate of the seat shell is equipped with sound absorption hole and sound absorbing wave board, which can have a good sound absorption function and can not be deformed for a long time
2 Armrest frame and foot stand: it is formed by stamping welding with high quality 1.5mm cold rolled steel, and electrostatic powder spraying after rust prevention treatment.
3 Sponge: high density rebound foam is adopted, and the sponge density is not less than 45kg/m3
4 Fabric: the fabric is high-quality polyester blended high-grade decorative fabric, anti pollution, wear-resistant, anti fading
5 Handrail: the armrest cover is beech handrail, with a thickness of 25mm. Except for two armrests on the side, two seats in the middle seat share one handrail
6 Side plate: medium fiber density board, with external fabric, thickness of 25mm
7 Writing board: multi layer plywood or high density medium fiber board, paint treatment, thickness 18mm
8 Seat package: spring return structure is adopted, with smart aftertaste and more than 100000 rebound times
9 Seat structure: the two side force structure is adopted. It is that the force point of the seat bag is not on the sponge when the external force acts on the back, but on the corner code on both sides of the seat bag, so it is more durable and firm, and more comfortable
10 Fastening screw: anti rust static spraying hexagon expansion screw is adopted, which is not rusty
11 Seat shape: the design shall conform to the engineering principle of "human morphology", and the comfort degree shall be good1 seat, seat back shell: inside the back, shell, the seat is formed by polypropylene multi-element material, with thickness of not less than 6mm. The outer plate of the seat shell is equipped with sound absorption hole and sound absorbing wave board, which can have a good sound absorption function and can not be deformed for a long time