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1. Chair frame: The steel frame is made of round square pipe 19.2*32.3*T1.5mm high-quality Q235 carbon steel pipe, fully automatic robotic arm welding, strong stability, the surface is treated by high-speed sanding and rust removal, and the high-temperature baking paint spraying process is adopted, the paint surface is firm and does not strip the paint</br> 2. Back: New PP+25% glass fiber, integrated injection molding, upper and lower double-layer backrest design, ergonomic curve modeling to achieve support for specific parts such as thoracic spine and lumbar spine, effectively protect the waist and back, and prevent the sub-health risk of sitting for a long time. The upper end of the backrest is designed with a handle for easy movement. The backrest is designed with soft packs, ultra-soft sponge and high-quality elastic cloth, 280 square grams, comfortable and breathable, and a thrust of 60kg is applied to it, which is maintained for 60s without abnormality</br> 3. Seat seat: using a national standard type sponge with a density of 68 and a hardness of 45, weighing 0.58kg, using a high-elasticity and breathable 280 square gram seat cloth, comfortable and breathable, with a PP engineering plastic dustproof bottom shell. The 24-hour formaldehyde emission is less than 0.120 mg/m2 · h, which meets the QB/T 2280-2016 test standard</br> 4. Handrails: new PP+25% glass fiber, which can slide back and forth 2.5cm, which can meet different sitting postures and crowds, and effectively relieve fatigue. </br> 5. Foot plug: Nylon rubber plug design is used to increase ground contact, anti-slip and wear-resistant </br> 6. Function: The cushion is turned up, folded and stored, saving space</br> 7. Writing board: using high-quality PP+30% glass fiber thickened board surface, aluminum alloy bracket with fine polishing aluminum alloy rotation mechanism, can be flexibly rotated and retracted. Load-bearing capacity of 20KG, with ergonomic design of pen tray and cup position
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