Technical parameters:1. Fabric: The backrest and seat cushion fabric are made of polyester double-layer fabric, both the inner and outer layers are polyester, the processing technology uses warp knitting/dyeing, the fabric texture is sandwich, and the fabric thickness is 3mm.2. Backrest: Size 430*140*300mm, the plastic back frame uses the new imported PA+30% glass fiber material, according to the ergonomic design, it is tilted inward from both sides of the back frame, and the upper and lower parts are tilted outward in a "C" shape, which fits the back of the human body; the internal hollow 360*240mm space is used for ventilation, the upper part is tilted outward by 26°, and the lower part is tilted outward by 41°, which is convenient for the human body to lean back and fit the back of the human body better; the entire inner surface is covered with fabric, and the fabric is tight. (Provide the backrest drawing and the original copy with red seal as evidence)3. Seat cushion: size 472*450*75mm, using high-density, high-elasticity shaped sponge better than or equal to 45#, embedded with injection-molded plastic base, the transition surface of the seat cushion adopts arc transition; the seat surface is covered with fabric and fixed with screws, the seat surface is high in the middle and bottom on the front and back sides, and the surrounding adopts R50 arc; the seat surface is fixed to the rear crossbeam of the tripod through plastic connectors + screws, the front crossbeam does not need any fixation, and the seat surface can be flipped 90° from the front side;4. Armrest: Made of PA+30% glass fiber, the armrest surface size is 190*60mm, the thickness is ≥20mm, and the connection section size is 35*25mm: the angle between the armrest surface and the connection section is ≥115°, the armrest surface is designed with arcs all around, and the overall cut is inclined forward, and the size of the front section of the armrest is ≥100mm. It is more convenient to use the handrail. (Provide the armrest drawing and the original copy with red seal as evidence)5. Chair frame: The main body of the chair frame is welded with 32.5*20.5mm square tube with wall thickness of 1.5mm + cold-rolled steel round tube Ø19mm. The front chair frame is bent into shape, with the upper and lower bending angles ≥153°. The chair frame size is 450*540mm, and the crossbeam length is 490mm; the rear chair frame length is 600mm and the width is 560mm. The front and rear chair frames are fixed on the left and right sides with screws, and the two crossbeams are connected by two steel wire ropes, so that the front and rear chair frames can be folded. (Provide the chair frame drawing and the original copy with red seal as evidence)6. Function: The seat plate can be flipped up and fully folded7. Product size: L610*W570*H835Technical parameters:
1. Tabletop: E1 grade high-density board tabletop, thickness of 25mm, the inner material is treated with insect and corrosion prevention chemicals; Edge sealing: PVC glue edge; Free formaldehyde emission is better than the national standard, density ≥750 kg/m3, free formaldehyde content ≤8mg/100g.
2. Table frame:
2.1 Steel frame support plate: Made of high-quality high-precision first-grade cold-rolled steel plate through stamping and bending process, the steel plate size is 300*45mm, the wall thickness is ≥2.5mm, and the surface is treated with rust-proof electrostatic spraying.
2.2 Folding mechanism: The two sides of the table adopt die-casting integrated aluminum joints, the surface is treated with rust-proof electrostatic spraying, and the high-strength wear-resistant powder metallurgy alloy material tongue core + aluminum core + spring folding device is built-in, and the tongue core length is ≥42mm. The middle part is equipped with an inner hexagonal tube transmission shaft to connect the aluminum core, the length of the aluminum core is ≥100mm, and the outer side is equipped with a high-quality ABS one-piece molded knob switch, the switch has an outer size of Ø65mm, a height of 25mm, and an anti-slip groove. Any side can be folded by gently twisting 180°. (Provide a physical picture of the folding device and a drawing of the knob switch, and a copy of the original with a red seal as evidence)
2.3. Tripod: It is welded and formed by combining plastic accessories, high-quality high-precision first-class cold-rolled steel plates and steel pipes. The long leg tube uses an egg-shaped steel pipe of 561*60*30mm, with a wall thickness of ≥1.2mm (excluding spraying thickness), and the short leg tube uses an egg-shaped steel pipe of 540*50*25mm, with a wall thickness of ≥1.5mm (excluding spraying thickness). The bottom width of the tripod is 550mm, and the long leg tube and the short leg tube are 60 degrees apart. The surface is treated with rust-proof electrostatic spraying. (Provide the tripod drawing and the original copy with red seal as evidence)
2.4. Crossbeam: Made of high-quality, high-precision first-grade cold-rolled steel round tube Ø50mm, wall thickness ≥1.0mm, and anti-rust electrostatic spraying treatment on the surface.
2.5. Book net: Made of high-quality Ø15mm round tube, wall thickness ≥0.8mm, composed of injection molded plastic parts and round tubes, and anti-rust electrostatic spraying treatment on the surface;
3. Baffle: The baffle E1 grade high-density board is 15MM, and the inner material is treated with insect and anti-corrosion chemicals; Edge sealing: PVC glue edge; Free formaldehyde release is better than the national standard, density ≥750 kg/m3, free formaldehyde content ≤8mg/100g.
4. Casters: Use PU universal brake wheels, adjustable height.
5. Folding: The whole table can be folded 90 degrees; equipped with balance weight.
9. Product size (unit: mm): Sector: Six-piece diameter 1600mm, single position: 785*583*750mm. (Tolerance ±5mm)
Trapezoid: Six-piece diameter 1570mm, single position: 770*476*750mm. (Tolerance ±5mm)
Sector: Eight-piece diameter 1850mm, single position: 695*578*750mm. (Tolerance ±5mm)
Trapezoid: Eight-piece diameter 1825mm, single position: 688*508*750mm. (Tolerance ±5mm)
▲11. The content of lead, cadmium, mercury, hexavalent chromium, polybrominated biphenyls and polybrominated diphenyl ethers in the wood of the product to be invested shall meet the limit requirements of GB/T 26572-2011; provide a test report with CNAS or CMA certification (original copy with red seal).
12. The content of lead, cadmium, mercury, hexavalent chromium, polybrominated biphenyls and polybrominated diphenyl ethers in the pulley, outer ring, inner ring, turn pin and various substrates of the casters of the products submitted shall meet the limit requirements of GB/T 26572-2011; provide a test report with CNAS or CMA certification (original copy with red seal).
13 The steel frame of the products submitted shall meet the limit requirements of antimony, arsenic, barium, selenium and hexavalent chromium according to the test basis of GB/T 36021-2018; provide a test report with CNAS and CMA certification (original copy with red seal).
14▲The product has passed the test on the antibacterial performance of cold-rolled steel frame. The test basis and method are GB/T 21866-2008. According to the analysis of the test results, the antibacterial rate of Staphylococcus aureus reaches Level I; provide a test report with CNAS or CMA mark (original copy with red seal).
15. ▲The product has passed the test of mildew resistance of cold-rolled steel frame, the test basis and method are GB/T1741-2020, the test results are analyzed, mildew resistance level is 1; provide a test report with CNAS/CMA mark (original copy with red seal).
16. ▲The product has passed the test of lead, cadmium, mercury, hexavalent chromium, polybrominated biphenyls, and polybrominated diphenyl ethers in coatings, hard plastics, and wood boards, and meets the limit requirements of GB/T 26125-2011; formaldehyde emission and heavy metal content meet the limit requirements of GB18584-2001; provide a test report with CNAS or CMA certification (original copy with red seal).
17. To ensure the professionalism of the manufacturer, the manufacturer is required to pass the ISO9001:2015 standard quality management system, ISO14001:2015 standard environmental management system, ISO45001:2018 standard occupational health and safety management system certification, and the certification scope covers: design and assembly of teaching equipment (smart classroom desks and chairs); the manufacturer is a member of the National Education Equipment Association, a high-tech enterprise, and a specialized and new enterprise; provide a certificate (original copy with a red seal);
18. The after-sales service organized by the bidding manufacturer is required to reach a ten-star level of perfection; pass the requirements of GB/T 27922-2011 "Commodity After-sales Service Evaluation System" and GB/T 16868-2009 "Commodity Business Service Quality Management Specifications", and the certificate covers: the degree of perfection of after-sales service of teaching equipment (smart classroom desks and chairs) (ten stars)
▲11. The product has obtained the environmental labeling product certification certificate and can be queried on the national certification and accreditation information platform (original copy with a red seal).
