D552

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
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
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
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.
5. Foot plug: Nylon rubber plug design is used to increase ground contact, anti-slip and wear-resistant
6. Function: The cushion is turned up, folded and stored, saving space
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

D551

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, no paint stripping, and 2 steel wires are protected to increase the tensile force.
2. Back: new PP+25% glass fiber, integrated injection molding, elastic waist support curve design, upper and lower double-layer backrest shape to achieve the support points of specific parts such as thoracic spine and lumbar spine, effectively protect the waist and back, prevent the sub-health risk of sitting for a long time, and the upper end of the backrest is designed with a handle to facilitate movement. The implicit free structure allows the back of the chair to lean back 12°±2 within a certain range, and the thickened fine hole 300 square gram mesh fabric is selected, which is breathable and tensile strong, and a thrust of 60kg is applied to it, which is maintained for 60s without abnormality
3. Seat seat: using a national standard sponge with a density of 68 and a hardness of 45, weighing 0.58kg, using a high-elasticity and breathable 280 square grams of 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
4. Handrails: It can slide back and forth 2.5cm, which can meet different sitting postures and crowds, and effectively relieve fatigue.
5. Foot plug: Nylon rubber plug design is used to increase ground contact, anti-slip and wear-resistant
6. Function: The cushion is turned up, folded and stored to save space
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

D538

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
2. Back: new PP+25% glass fiber, integrated injection molding, elastic waist support curve design, upper and lower double-layer backrest shape to achieve the support points of specific parts such as thoracic spine and lumbar spine, effectively protect the waist and back, prevent the sub-health risk of sitting for a long time, and the upper end of the backrest is designed with a handle to facilitate movement. The implicit free structure allows the back of the chair to lean back 12°±2 within a certain range, and the thickened fine hole 300 square gram mesh fabric is selected to be comfortable and breathable, and a thrust of 60kg is applied to it to maintain 60s without abnormality
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
4. Handrail: new PP+25% glass fiber, which can be flexibly turned up. Increased seating space for greater comfort
5. Foot plug: Adopt original triangle design to increase ground contact, anti-slip and wear-resistant
6. Function: The cushion is turned up, pushed and stacked for storage, saving space
7. Writing board: using high-quality PP+30% glass fiber thickened board surface, 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

D539

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
2. Back: New PP+25% glass fiber, integrated injection molding, upper and lower double-layer backrest design, ergonomic curve shape to achieve support for specific parts such as thoracic spine and lumbar spine, effectively protect the waist and back, and prevent sub-health risks of sitting for a long time. The upper end of the backrest is designed with a handle for easy movement. The implicit free structure allows the back of the chair to lean back 12°±2 within a certain range, adopts imported special net, high strength, wear-resistant, comfortable sitting, and applies 60kg of thrust to it, keeping it for 60s, no abnormality
3. Chair seat: Suspended hollow chair seat design, integrated injection molding process, using new imported PA+ glass fiber material, effectively enhance the structural strength of the chair body. Using Korea imported special net, high strength, wear-resistant, comfortable to sit. The 24-hour formaldehyde emission is less than 0.120 mg/m2 · h, which meets the QB/T 2280-2016 test standard
4. Caster: Φ50mm, PU surface silent nylon wheels
5. Function: The cushion is turned up, pushed and stacked for storage, saving space
6. Writing board: using high-quality PP+30% glass fiber thickened board surface, 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

D537

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
2. Back: new PP+25% glass fiber, integrated injection molding, elastic waist support curve design, upper and lower double-layer backrest shape to achieve the support points of specific parts such as thoracic spine and lumbar spine, effectively protect the waist and back, prevent the sub-health risk of sitting for a long time, and the upper end of the backrest is designed with a handle to facilitate movement. The implicit free structure allows the back of the chair to lean back 12°±2 within a certain range, and the thickened fine hole 300 square gram mesh fabric is selected to be comfortable and breathable, and a thrust of 60kg is applied to it to maintain 60s without abnormality
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
4. Handrail: new PP+25% glass fiber, which can be flexibly turned up. Increased seating space for greater comfort
5. Foot plug: Adopt original triangle design to increase ground contact, anti-slip and wear-resistant
6. Function: The cushion is turned up, pushed and stacked for storage, saving space
7. Writing board: using high-quality PP+30% glass fiber thickened board surface, 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

D536

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, no paint stripping, and 2 steel wires are protected to increase the tensile force.
2. Back: New PP+25% glass fiber, integrated injection molding, petal-shaped waist curve design in line with ergonomics and effectively alleviate fatigue. Apply 60kg of thrust to it and hold it for 60s without abnormality
3. Seat seat: new PP+25% glass fiber, integrated injection molding, surface texture treatment, upper and lower cover design, and the distribution of stiffeners at the bottom of the seat to effectively ensure durability and safety.
4. Armrests: Adopt an outward design to increase the seat space and make it more spacious and comfortable
5. Foot plug: Adopt original triangle design to increase ground contact, anti-slip and wear-resistant
6. Function: The seat cushion is turned up, pushed, folded, and stored to save space
7. Writing board: using high-quality PP+30% glass fiber thickened board surface, 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

D535

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, no paint stripping, and 2 steel wires are protected to increase the tensile force.
2. Back: New PP+25% glass fiber, integrated injection molding, petal-shaped waist curve design in line with ergonomics and effectively alleviate fatigue. Apply 60kg of thrust to it and hold it for 60s without abnormality
3. Seat seat: using national standard high-density sponge with density of 40 and hardness of 28, weighing 0.65kg, using high-elasticity and breathable 280 square gram seat cloth, comfortable and breathable, with 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
4. Armrests: Adopt an outward design to increase the seat space and make it more spacious and comfortable
5. Foot plug: Adopt original triangular design to increase ground contact, anti-slip and wear-resistant
6. Function: The seat cushion is turned up, pushed, folded, and stored to save space
7. Writing board: using high-quality PP+30% glass fiber thickened board surface, 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

D553

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, no paint stripping, and 2 steel wires are protected to increase the tensile force.
2. Back: new PP+25% glass fiber, integrated injection molding, elastic waist support curve design in line with ergonomics to effectively relieve fatigue, thickened fine pores of 300 square gram mesh, breathable and strong tensile resistance, apply 60kg of thrust to it, keep it for 60s, no abnormality
3. Seat seat: using national standard high-density sponge with density of 40 and hardness of 28, weighing 0.65kg, using high-elasticity and breathable 280 square gram seat cloth, comfortable and breathable, with 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
4. Armrests: Adopt an outward design to increase the seat space and make it more spacious and comfortable
5. Foot plug: Adopt original triangular design to increase ground contact, anti-slip and wear-resistant
6. Function: The seat cushion is turned up, pushed, folded, and stored to save space
7. Writing board: using high-quality PP+30% glass fiber thickened board surface, 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

D533

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, no paint stripping, and 2 steel wires are protected to increase the tensile force.
2. Back: new PP+25% glass fiber, integrated injection molding, elastic waist support curve design in line with ergonomics to effectively relieve fatigue, thickened fine pores of 300 square gram mesh, breathable and strong tensile resistance, apply 60kg of thrust to it, keep it for 60s, no abnormality
3. Seat seat: using national standard high-density sponge with density of 40 and hardness of 28, weighing 0.65kg, using high-elasticity and breathable 280 square gram seat cloth, comfortable and breathable, with 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
4. Armrests: Adopt an outward design to increase the seat space and make it more spacious and comfortable
5. Foot plug: Adopt original triangular design to increase ground contact, anti-slip and wear-resistant
6. Function: The seat cushion is turned up, pushed, folded, and stored to save space
7. Writing board: using high-quality PP+30% glass fiber thickened board surface, 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

D555

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 paint.
2. Back: New PP+25% glass fiber, integrated injection molding, petal-shaped waist curve design in line with ergonomics and effectively alleviate fatigue. Apply 60kg of thrust to it and hold it for 60s without abnormality
3. Seat seat: using national standard high-density sponge with density of 40 and hardness of 28, weighing 0.65kg, using high-elasticity and breathable 280 square gram seat cloth, comfortable and breathable, with 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
5. Foot plug: Adopt original triangular design to increase ground contact, anti-slip and wear-resistant
6. Function: The cushion is turned up, pushed and stacked for storage, saving space

D556

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 paint. Apply 60kg of thrust to it and hold it for 60s without abnormality
2. Back: New PP+25% glass fiber, integrated injection molding, petal-shaped waist curve design in line with ergonomics and effectively alleviate fatigue.
3. Seat seat: new PP+25% glass fiber, integrated injection molding, surface texture treatment, upper and lower cover design, and the distribution of stiffeners at the bottom of the seat to effectively ensure durability and safety.
5. Foot plug: Adopt original triangular design to increase ground contact, anti-slip and wear-resistant
6. Function: The cushion is turned up, pushed and stacked for storage, saving space

D398网座

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 paint
2. Back: new PP+25% glass fiber, the backrest is designed to be more sturdy, integrated injection molding, waist curve design, imported special net, high strength, wear-resistant, comfortable sitting, 60kg thrust is applied to it, and it is maintained for 60s, without abnormality
3. Chair seat: Suspended hollow chair seat design, integrated injection molding process, using new imported PA+ glass fiber material, effectively enhance the structural strength of the chair body. Using Korea imported special net, high strength, wear-resistant, comfortable to sit. The 24-hour formaldehyde emission is less than 0.120 mg/m2 · h, which meets the QB/T 2280-2016 test standard
4. Handrail: Handrail aluminum alloy connector, handrail surface PU material, soft and hard, comfortable feel, can be flexibly turned up. Increased seating space for greater comfort
5. Foot plug: Adopt original triangle design to increase ground contact, anti-slip and wear-resistant
6. Function: The cushion is turned up, pushed and stacked for storage, saving space
7. Writing board: using high-quality PP+30% glass fiber thickened board surface, 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