Basic material description and parameters of auditorium chairs:
1. Back sponge: High-density cold-foamed PU shaped sponge is used. The length of the back sponge is 700mm, the width is 440mm, the thickness is 90mm, and the density of the sponge is 45kg/m³.
2. Seat sponge: High-density cold-foamed PU shaped sponge is used. The length of the seat sponge is 450mm, the width is 425mm, the thickness is 105mm, and the sponge density is 60kg/m³.
3. Back and inner board: It is made of high-quality high-density hardwood multi-layer plywood, which is cold-pressed and refined by molds. It is beautiful, non-fading and anti-deformation. Dimensions: Length is 690mm, width is 425mm, and thickness is 11mm.
4. The inner plate of the seat: It is made of high-density hardwood multi-layer plywood, which is cold-pressed and refined by a mold. It is beautiful, non-fading and anti-deformation. Dimensions: Length is 440mm, width is 404mm, and thickness is 11mm.
5. Back shell: Injection molding with high-quality PP (polypropylene) multi-element composite material mold. The seat shell is designed with a muffler hole
6. Handrail frame and stand feet: Made of high-quality steel plate, steel pipe stamping, welding and molding, the surface is treated with excellent degreasing, rust-removing, phosphating, electrostatic spraying with epoxy-polyester powder coating, high-temperature plasticizing treatment, and the appearance is smooth. No rust, anti-corrosion. Fusion bonded epoxy powder uncoated conforms to the standard. The fixing screw adopts concealed technology, the appearance is smooth and beautiful, and there is no dust accumulation
7. Writing board: The positioning shaft device is used, and a noise-absorbing washer is installed. The supporting and connecting structures are all aluminum alloy injection molding. The board surface is high-density board, covered with melamine surface, and the color is optional.
8. Seat return structure: It adopts high-quality steel pipe, and the through holes at both ends are fixed with 8*25 round head hexagon sockets.
9. Armrest cover: Made of high-grade logs, solid wood is dehydrated, dried and buffered, and the exterior is covered with environmentally friendly baking paint.
10. Fabric: High-quality fabric, anti-fouling, anti-static, anti-fading, fabric color and variety are selected according to the user,
11. Side panels: High-density panels are used, stamped and formed by molds, and the surface is pasted with 3mm thick high-density sponge, with excellent fabric finishes. The side plate is equipped with glue nails and buckled upside down on the armrest frame, which is stable and beautiful.
12. The basic size and structure of the seat: The center distance: 580mm, the height of the seat cushion from the ground is 430mm, and the height of the back from the ground is 990mm. The small row spacing is 900mm, and the small installation arc is 15m. After the seat bag is opened, the back force is on the back angle code
13. Seat shape: The design conforms to the ergonomic principle and the comfort is good.
14. Ground fixing: The seat is fixed to the ground by using top-blasting screws. The top explosion screw is divided into two parts: the ground explosion rubber sleeve and the screw.
