| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 580 x 580 x 860 mm | |
|---|---|---|
| Seat height | 480 mm | |
| Seat width | 490 mm | |
| Seat depth | 540 mm | |
| Backrest height | 450 mm | |
| Seat cushion thickness | 80 mm | |
| Leg tube diameter | 25 mm | |
| Brass foot cap height | 30 mm | |
| Backrest width at top | 480 mm | |
| Leg splay width (front) | 510 mm | |
| Finished Seat Cushion Thickness | 90 mm | |
| Backrest Padding Thickness | 70 mm | |
| Lumbar Support Zone Height | 240 mm | |
| Clear Width Between Armrests | 540 mm |
Net weight / load capacity / users / durability
| Net weight per chair | 12 kg | |
|---|---|---|
| Static weight capacity | 150 kg | |
| Seat foam density | 45 kg/m³ | |
| Foam rebound rate | 60% | |
| Fabric abrasion resistance | 30000 Martindale cycles | |
| Leg finish corrosion resistance | 48 hours salt spray rating | |
| Recommended daily use duration per seat | 8 hours | |
| Seam stitch pitch | 8 stitches per 30mm | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% | |
| Back Foam Density Reference | 38 kg/m³ |
Core acceptance fields · Panels / hardware / frame / upholstery
| Front seat/back upholstery | Light cream performance fabric with vertical quilted stitching | |
|---|---|---|
| Back panel upholstery | Dark taupe smooth matching fabric | |
| Seat core substrate | 12mm thick plywood board under foam | |
| Seat/back padding | High-density polyurethane foam | |
| Leg frame | 2mm thick powder-coated black tapered steel tube | |
| Foot caps | Brass-finish metal decorative caps with anti-scratch plastic base | |
| Hardware fasteners | Zinc-plated steel assembly screws | |
| Stitching thread | High-tenacity polyester matched to upholstery color | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board | |
| Backrest Internal Frame Thickness | 14 mm bent plywood/composite reinforced frame | |
| Gas-lift Engineering Specification | Recommended Class 4; outer tube 50 mm; stroke 100 mm | |
| Tilt Mechanism Plate Thickness | 2.5 mm cold-rolled steel |
Adjustment / rotation / tilt / mobility / storage features
| Seating support | Fixed rigid four-leg frame with no recline or swivel function | |
|---|---|---|
| Back support | Curved wrap-around back with vertical channel quilting for lumbar contact | |
| Floor protection | Plastic base under brass foot caps prevents hard floor scratching | |
| Assembly requirement | Knockdown leg attachment with included hardware and tools | |
| Cleaning maintenance | Wipe-clean upholstery surface suitable for mild soap and water care | |
| Stacking capability | Non-stackable fixed frame design | |
| Recline Angle / Lock Reference | 125° with 3suggested lock positions | |
| Tilt Tension User-weight Range | Reference adjustment coverage 120 kg | |
| Height Adjustment Stroke | 100 mm continuous travel | |
| Rotation / Mobility Configuration | 360° swivel with 5-caster multidirectional movement |
Verified carton / gross weight / assembly / loading data
| Reference Package Count | 1 set / 2 cartons | |
|---|---|---|
| Reference Assembly Time | 40 minutes per set | |
| Reference Carton Dimensions | 850× 420× 720 mm | |
| Reference Packaged Gross Weight | 23 kg/set | |
| Reference Carton Volume | 0.26 m³/set | |
| Indicative 20GP Loading | 135 sets at 85% space utilization | |
| Indicative 40HQ Loading | 320 sets at 85% space utilization |
Recommended spaces / users / usage modes
| Residential dining room | Seating for standard 750mm height dining tables for daily family meals | |
|---|---|---|
| Kitchen island seating | Supplemental seating for kitchen islands at standard dining counter height | |
| Reception waiting area | Light commercial accent seating for office or lounge reception spaces | |
| Cafe bistro seating | Seating for independent cafes and casual dining establishments | |
| Home office guest seating | Side chair for home office desks for visitor use | |
| Recommended pairing | Matched with stone/wood dining tables and black/gold hardware furniture | |
| Recommended Matching Desk Size | 2.4 m executive desk | |
| Reference Daily Use Duration | 8 hours/day; confirm by ergonomic testing |
EU Market Access Requirements* EN Standards
| Domestic furniture seating safety | EN 12520:2015 | |
|---|---|---|
| Upholstered furniture resistance to ignition | EN 1021:2014 | |
| Furniture surface finish durability | EN 15187:2006 |
Standards applicable to China-market projects
| General furniture safety standard | GB/T 3324 | |
|---|---|---|
| Upholstered furniture flame retardancy | GB 20286 | |
| Furniture mechanical performance for seating | GB/T 10357.3 |
This product must meet the following technical requirements: 1. General furniture safety standard: GB/T 3324; 2. Upholstered furniture flame retardancy: GB 20286; 3. Furniture mechanical performance for seating: GB/T 10357.3; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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