| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall assembled dimensions | 720 x 730 x 750 mm | |
|---|---|---|
| Seat height | 450 mm | |
| Seat well width | 550 mm | |
| Seat well depth | 550 mm | |
| Backrest height | 380 mm | |
| Armrest height above seat | 180 mm | |
| Geometric side cutout opening | 220 mm | |
| Base footprint diameter | 680 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
| Recommended static load capacity | 150 kg | |
|---|---|---|
| Net product weight | 19 kg | |
| Seat foam density | 45 kg/m³ | |
| Foam rebound rate | 60% | |
| Upholstery abrasion resistance | 30000 Martindale cycles | |
| Floor protection pad load rating | 150 kg per chair | |
| 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
| Outer taupe upholstery | Matte short-pile velvet, 0.8mm fabric thickness | |
|---|---|---|
| Inner off-white upholstery | Stain-resistant matte performance velvet, 0.8mm fabric thickness | |
| Seat cushion padding | 45 kg/m³ high-density polyurethane foam, 120mm thickness | |
| Backrest and arm padding | 35 kg/m³ medium-density foam, 80mm thickness | |
| Inner structural frame | 18mm thick engineered kiln-dried hardwood ply | |
| Integrated base structure | Structural plywood frame fully upholstered, no exposed legs | |
| Floor contact pads | 3mm thick non-marking rubber anti-slip pads | |
| Panel joint stitching | Reinforced polyester thread, 8 stitches per inch | |
| 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 posture support | Enclosed wrap-around barrel back provides upper-body lateral support for upright relaxed seating | |
|---|---|---|
| Static use design | Fixed non-swivel, non-tilting structure for stable permanent conversation area placement | |
| Floor protection | Full perimeter rubber pads prevent scratching of hard wood, tile, or polished concrete floors | |
| Low-maintenance upholstery | Stain-repellent velvet finish allows spot cleaning with mild upholstery detergent | |
| Space efficiency | Compact footprint enables circular 4-chair grouping around 600mm diameter side tables | |
| Assembly requirement | Fully assembled delivery with no consumer attachment of legs or components | |
| Color configuration | Two-tone off-white and warm taupe fabric panels form geometric angular visual detail | |
| 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
| Number of shipping cartons per chair | 1 | |
|---|---|---|
| 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 waiting areas | Compact circular grouping creates welcoming formal seating for visitor check-in zones | |
|---|---|---|
| Residential reading nooks | Enclosed wrap-around design provides private, cozy seating near windows or bookshelves | |
| Hotel lobby lounge spaces | Durable velvet upholstery and sculptural form complements modern luxury interior design schemes | |
| Bedroom accent seating | Small footprint fits in bedroom corners or at the foot of beds for dressing seating | |
| Cafe casual conversation zones | Low seat height and enclosed arms support extended relaxed conversations over drinks | |
| Showroom display staging | Geometric sculptural form serves as a focal statement piece for modern interior showcases | |
| 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 | Strength, durability, and safety requirements for domestic seating, applicable for home use | |
|---|---|---|
| EN 1021-1:2014 | Upholstered furniture ignition resistance to smouldering cigarettes, recommended for commercial spaces | |
| EN 13759:2004 | Seating leg and floor contact point load testing, applicable for integrated base stability |
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 for wooden furniture, applicable for structural frame durability testing | |
|---|---|---|
| GB 18580-2017 | Formaldehyde emission limits for wood-based panels, required for indoor air quality compliance |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden furniture, applicable for structural frame durability testing; 2. GB 18580-2017: Formaldehyde emission limits for wood-based panels, required for indoor air quality compliance; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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