| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| overall dimensions | 840 x 800 x 880 mm | |
|---|---|---|
| seat height | 510 mm | |
| seat width | 570 mm | |
| seat depth | 510 mm | |
| seat cushion thickness | 115 mm | |
| backrest height above seat | 430 mm | |
| armrest height above seat | 220 mm | |
| front leg cross-section | 60 mm | |
| brass ferrule height | 20 mm | |
| rear leg cross-section | 30 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 | 20 kg | |
|---|---|---|
| recommended static load capacity | 120 kg | |
| fabric abrasion resistance | 30000 double rubs | |
| foam density (seat cushion) | 35 kg/m³ | |
| foam rebound rate | 45% | |
| frame static load rating | 150 kg | |
| floor protection rating | Hard floor safe | |
| residential warranty | 2 years | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% | |
| Back Foam Density Reference | 38 kg/m³ |
Core acceptance fields · Panels / hardware / frame / upholstery
| upholstery fabric | Black woven matte fabric, 0.8 mm thickness | |
|---|---|---|
| seat cushion fill | High-density polyurethane foam with 10 mm polyester wadding | |
| backrest fill | Medium-density polyurethane foam, 80 mm thick | |
| structural frame | Powder-coated matte black steel tubing, 1.5 mm wall thickness | |
| leg construction | Stepped geometric front legs, cylindrical rear legs, matching black finish | |
| foot ferrules | Polished brass-plated metal caps, pressed-fit to leg ends | |
| internal support structure | 12 mm thick plywood seat deck to secure cushion and frame | |
| upholstery stitching | Concealed seam construction, 8 mm stitch pitch | |
| surface finish (frame) | Scratch-resistant matte black powder coat | |
| 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 |
Adjustment / rotation / tilt / mobility / storage features
| seating support | Fixed stationary position, no recline or swivel mechanism | |
|---|---|---|
| armrest support | Integrated fixed horizontal armrests supported by vertical leg posts | |
| back support | Curved enveloping backrest wraps slightly around user sides | |
| floor protection | Brass ferrule caps distribute weight and prevent floor scratches | |
| assembly requirement | Knock-down construction, legs attach to seat frame with included hardware | |
| upholstery care | Spot clean with mild upholstery cleaner, professional cleaning recommended | |
| stackability | Non-stackable fixed frame design, no interlocking geometry | |
| weight distribution | Four evenly spaced legs prevent tipping under static load | |
| 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 living room | Accent seating beside sofa or coffee table for guest use | |
|---|---|---|
| home office reception | Visitor seating in home workspace or small meeting nook | |
| dining room | Head-of-table seating for formal dining spaces | |
| boutique lounge | Seating for hotel lobbies, upscale cafes or retail waiting areas | |
| bedroom vanity | Seating for bedroom dressing or vanity areas | |
| recommended pairing | Matches black and gold metal accent furniture and light neutral flooring | |
| 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
| EN 12520:2015 | Domestic furniture seating strength, durability and stability requirements | |
|---|---|---|
| EN 1021-1:2014 | Upholstered furniture ignitability resistance to smouldering cigarette |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden furniture, frame stability validation | |
|---|---|---|
| GB/T 3922-2013 | Textile upholstery colorfastness to rubbing testing requirement | |
| GB 28007-2011 | Formaldehyde emission limits for upholstered furniture materials |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden furniture, frame stability validation; 2. GB/T 3922-2013: Textile upholstery colorfastness to rubbing testing requirement; 3. GB 28007-2011: Formaldehyde emission limits for upholstered furniture materials; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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