W660 Hidden writing board auditorium chair

High school upholstery Fabric Lecture hall seating desk vip folding auditorium theater chairs

1. Seat cotton: Made of high-density PU cold-foamed shaped cotton, length: 500mm, width: 455mm, thickness: 155mm, density: 55-60kg/m³.

2. Back cotton: Made of high-density cold-foamed shaped sponge, the curve conforms to the ergonomic principle. Length: 520mm, width: 430mm, thickness: 120mm, density: 45-50kg/m³. This ensures that the seat does not deform during long-term use, providing good comfort and resilience, and will never deform.

3. Back inner panel: Made of high-quality plywood through mold injection molding, it has an arc-shaped appearance, is elegant and generous, and features a curvilinear beauty. Length: Thickness: 6mm.

4. Back and outer panel: Made of high-quality high-density hardwood multi-layer board through mold injection molding, it has an arc-shaped appearance, is elegant and generous, and features a curving beauty. Length: 700mm, width: 520mm, thickness: 15mm.

5 Seat outer panel: Made of high-quality high-density hardwood multi-layer board through mold injection molding, length: 460mm, width: 430mm, thickness: 12mm.

6 Handstand: The vertical pipe is made of 100*30*T1.5mm high-quality square pipe. The footboard is made of high-quality 2.0mm thick cold-rolled steel plate through stamping, with a length of 260mm and a distance of 205mm between the two holes. The surface is treated with anti-rust electrostatic spraying.

7 Central shaft: Made of high-quality solid iron with a diameter of φ14mm, it is durable.

8 Handrail cover: Made of imported oak, coated with polyester paint, length :333mm, width: 59mm, thickness: 46mm.

9 Fabric: Made of high-quality imported high-grade special linen fleece imitation wool fabric, it is moderately soft and hard, comfortable to the touch, firmly bonded, without wrinkles, cracks, pilling, fading, anti-static treatment, wear-resistant, sound-absorbing and stain-resistant after long-term use.

10 Rotary aluminum alloy writing board

The writing board is made of ABS by injection molding and has pen slots, which is convenient for placing and taking out books and writing pens. The surface is treated with a baking varnish process, which is smooth, environmentally friendly, and elegant. It features corrosion resistance, impact resistance, aging resistance, wear resistance, and the ability to maintain color for a long time during use. The rotating shaft of the writing board adopts a unique positioning device. The rotating head of the rotating shaft is integrally die-cast with the aluminum alloy of the tripod and has a quick withdrawal function. The supporting and connecting components are also made of aluminum alloy through die-casting in one piece, which is connected to the station feet and can be flipped up and down flexibly. The specification and size of the writing board are: 300mm×260mm×12mm (allowable deviation of ± 1 to 2mm).

11 Seat frame structure: Made of 1.5mm thick cold-rolled steel plate through die stamping, 10mm thick plywood is nailed to the surface of the iron frame to ensure the firmness of the chair seat and long-term use without failure.

twelve Return function: The seat bag adopts A damping recovery mechanism (torsion spring and damper), with noise as low as A-weighted sound level (≤30DB), ensuring no impact during recovery. Sound-absorbing small holes are made on the seat surface to enhance the sound absorption function of the seat, making it convenient for use in occasions with high requirements for audio effects.

13. Ground fixation: Electrostatically sprayed hexagonal expansion screws are used, which are not prone to rust. With an additional dust cover, it looks elegant and stylish.