WD551 Configurable writing board pulley conference chair

1. Chair frame: The steel frame is made of high-quality Q235 carbon steel tubes with a diameter of 19.2*32.3*T and a diameter of 1.5mm. It is welded by a fully automatic mechanical arm, ensuring strong stability. The surface undergoes high-speed sandblasting and rust removal treatment, and is treated with high-temperature baking paint spraying process, resulting in a firm paint surface that does not peel off. Two steel wires provide protection to increase tensile strength.

2. Backrest: Brand-new PP+25% glass fiber, integrally injection molded. The elastic lumbar support with a curved design provides support points for specific parts such as the thoracic and lumbar vertebrae. It effectively protects and supports the back, preventing sub-health risks from prolonged sitting. The upper handle design of the backrest makes it easy to move. The implicit free and easy structure enables the backrest to tilt inward and backward by 12°±2 ° within a certain range. It is made of thickened fine-hole 300-square-gram mesh fabric with strong breathability and tensile strength. When a thrust of 60kg is applied to it and maintained for 60 seconds, there is no abnormality

3. Chair seat: Made of national standard shaped sponge with a density of 68 and a hardness of 45, weighing 0.58kg. High-elasticity breathable 280-square-gram seat fabric is selected, which is comfortable and breathable. It is equipped with a PP engineering plastic dust-proof bottom shell. The 24-hour formaldehyde emission was less than 0.120 mg/m ² ·h, meeting the QB/T2280-2016 testing standard

4. Handrails: They can slide back and forth by 2.5cm, catering to different sitting postures and people, effectively alleviating fatigue.

5. Foot stoppers: Designed with nylon rubber stoppers, they increase ground contact and are anti-slip and wear-resistant.

6. Function: The cushion can be flipped up and folded for storage, saving space for placement

7. Writing board: Made of high-quality PP+30% glass fiber thickened board surface, with an aluminum alloy frame and a finely polished aluminum alloy rotating mechanism, it can be flexibly rotated and retracted. It can bear a load of 20KG and features a humanized pen slot and water cup position