| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 830 x 920 x 850 mm | |
|---|---|---|
| Seat diameter | 750 mm | |
| Seat height from floor | 450 mm | |
| Seat cushion thickness | 150 mm | |
| Backrest height above seat | 350 mm | |
| Backrest width at top edge | 830 mm | |
| Central vertical support height | 200 mm | |
| Base trim ring diameter | 780 mm | |
| Metal frame tube diameter | 25 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 product weight | 22 kg | |
|---|---|---|
| Recommended static load capacity | 159 kg | |
| Seat foam density | 40 kg/m³ | |
| Seat foam rebound rate | 60% | |
| Velvet upholstery abrasion resistance | 30000 cycles | |
| Frame static load rating | 300 kg | |
| 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 |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back upholstery | Short-pile velvet fabric, 0.8mm face thickness | |
|---|---|---|
| Seat cushion filling | High-density polyurethane foam, wrapped in dacron batting | |
| Backrest padding | 30kg/m³ polyurethane foam, 80mm thickness | |
| Structural frame | 1.2mm thick gold-plated polished stainless steel | |
| Central support bracket | Gold-plated steel with circular cutout detailing | |
| Base trim ring | 20mm wide polished gold-plated stainless steel | |
| Seam construction | Neatly stitched seams, 8mm stitch pitch | |
| 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 | |
| Five-star Base Material Thickness | Metal base wall 3.5 mm; diameter 700 mm |
Adjustment / rotation / tilt / mobility / storage features
| Seating function | Fixed-position single-person lounge seating, no recline mechanism | |
|---|---|---|
| Back support | Curved semicircular back provides mid-back lumbar support for relaxed sitting | |
| Assembly requirement | Simple 3-step assembly with included hardware, 40 minute maximum assembly time | |
| Floor protection | Concealed non-slip felt pads under base trim to prevent floor scratches | |
| Cleaning compatibility | Spot-clean with damp cloth, compatible with standard velvet upholstery cleaners | |
| Customization support | Upholstery color and finish customization available for bulk orders | |
| 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
| note | Engineering s for quotation, not supplier-measured values | |
|---|---|---|
| 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 use | Suitable for placement near sofas or as standalone lounge seating in living areas | |
|---|---|---|
| Bedroom vanity or seating nook | Fits compact bedroom spaces for relaxed seating or dressing area use | |
| Hotel lobby or lounge area use | Matches light luxury aesthetic for boutique hotel public seating areas | |
| Reception area seating | Appropriate for high-end office reception waiting areas | |
| Show home staging use | Ideal for contemporary or light luxury style interior staging projects | |
| 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 flammability | EN 1021:2014 | |
| Furniture surface durability | EN 15187:2006 |
Standards applicable to China-market projects
| Upholstered furniture safety standard | GB 28007 | |
|---|---|---|
| Formaldehyde emission limit | GB 18584 | |
| Metal furniture coating standard | GB/T 3324 |
This product must meet the following technical requirements: 1. Upholstered furniture safety standard: GB 28007; 2. Formaldehyde emission limit: GB 18584; 3. Metal furniture coating standard: GB/T 3324; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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