| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall footprint (S-curve assembly) | 3500 x 1800 x 770 mm | |
|---|---|---|
| Seat height | 450 mm | |
| Seat depth (single module) | 890 mm | |
| Single seat module width | 800 mm | |
| Backrest height (on supported segments) | 320 mm | |
| Backrest total height from floor | 770 mm | |
| Backless bench segment height | 450 mm | |
| Coordinating round side table diameter | 500 mm | |
| Side table height | 500 mm | |
| Cylindrical ottoman diameter | 400 mm | |
| Cylindrical ottoman height | 430 mm | |
| 4-segment round ottoman set diameter | 1200 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
| Total static load capacity (main seating) | 700 kg | |
|---|---|---|
| Foam density (seat core) | 40 kg/m³ | |
| Foam rebound rate | 60% | |
| Recommended maximum occupancy | 5 people | |
| Warranty period (frame) | 3 years | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% | |
| Back Foam Density Reference | 38 kg/m³ | |
| Upholstery Thickness / Abrasion Reference | 1.4 mm / 50000 cycles | |
| Five-star Base Static Load Reference | Acceptance target ≥120 kg; chair reference load 150 kg | |
| Caster Rolling Durability Reference | Acceptance target 30000 cycles |
Core acceptance fields · Panels / hardware / frame / upholstery
| Internal seating frame | Kiln-dried solid hardwood with plywood reinforcement | |
|---|---|---|
| Seat cushion fill | High-resilience differentiated-density polyurethane foam | |
| Backrest fill | Medium-density polyurethane foam with soft fiber wrap | |
| Upholstery surface | Abrasion-resistant matte PU or polyester fabric with 50000 double rub rating | |
| Seam construction | Reinforced stitched seams with 8 mm stitch pitch | |
| Side table top | 10 mm thick matte white engineered stone or powder-coated MDF | |
| Side table support | Chrome-plated 50 mm diameter tubular steel column with 380 mm diameter steel base | |
| Ottoman internal frame | Solid wood frame with matching high-density foam fill | |
| Base trim (seating and ottomans) | Hidden integrated non-marking plastic floor glides | |
| 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
| Modular connection system | Hidden metal interlocking connectors secure adjacent segments | |
|---|---|---|
| Backrest configuration | Curved partial backrest along inner seating arc, backless bench segments on outer curve | |
| Edge design | Fully rounded soft upholstered edges on all modules | |
| Floor protection | Non-marking glides fitted to all module bases | |
| Coordinating accessory compatibility | Modular design supports matching ottomans, side tables, and additional segments | |
| Upholstery customization | Compatible with multi-color block upholstery configurations as shown | |
| 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
| Office reception lobbies | Soft curved layout creates welcoming informal waiting zones for visitors | |
|---|---|---|
| Co-working breakout spaces | Modular segments support flexible casual collaboration and relaxation | |
| Public waiting areas (hospitals, education facilities) | Durable construction and varied seating positions suit high-traffic public use | |
| Hotel and hospitality lounge areas | Color-blocked aesthetic complements modern interior design schemes | |
| Library and community center relaxation zones | Low-profile open seating supports both individual and small group use | |
| Exhibition and event temporary seating | Reconfigurable modules allow fast layout adjustment for changing events | |
| 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 16139:2013 Level L | Strength, durability, and safety standard applicable to non-domestic public lounge seating | |
|---|---|---|
| EN 1021-1:2014 | Upholstery ignitability test standard applicable for cigarette source fire resistance |
US and Canada office-furniture standards
| North America procurement and testing reference | Recommended references: ANSI/BIFMA X5.4 |
|---|
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements applicable to wooden-frame upholstered furniture for general use | |
|---|---|---|
| GB 20286-2006 | Flame retardant performance requirement applicable to public space upholstered seating | |
| GB/T 39224-2020 | Performance evaluation standard applicable to upholstered furniture durability testing |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements applicable to wooden-frame upholstered furniture for general use; 2. GB 20286-2006: Flame retardant performance requirement applicable to public space upholstered seating; 3. GB/T 39224-2020: Performance evaluation standard applicable to upholstered furniture durability testing; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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