| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 900 x 770 x 850 mm | |
|---|---|---|
| Seat height | 420 mm | |
| Seat depth | 580 mm | |
| Seat width | 760 mm | |
| Backrest height above seat | 430 mm | |
| Under-seat knee clearance height | 240 mm | |
| Under-seat recess depth | 400 mm | |
| Edge padding radius | 80 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
| Seat foam density | 38 kg/m³ | |
|---|---|---|
| Seat cushion thickness | 140 mm | |
| Backrest cushion thickness | 120 mm | |
| Recommended static load capacity | 150 kg | |
| Seat foam rebound rate | 55% | |
| Net weight | 35 kg | |
| Velvet upholstery abrasion resistance | 50000 cycles | |
| Seam stitch pitch | 3 mm per stitch | |
| 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 | Deep navy polyester velvet with soft pile | |
|---|---|---|
| Seat fill material | High-density polyurethane foam wrapped in polyester fiber | |
| Backrest fill material | High-density polyurethane foam wrapped in polyester fiber | |
| Internal support frame | 20 mm thick bent plywood inner frame | |
| Seat support layer | Sinuous spring suspension under seat foam | |
| Base contact pads | 15 mm diameter non-marking plastic glides | |
| Internal frame fastening | Zinc-plated steel hardware joints | |
| 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
| Recline configuration | Fixed 105-degree relaxed back angle | |
|---|---|---|
| Mobility design | Static placement with non-slip glides | |
| Cover design | Fully upholstered fixed non-removable covers | |
| Armrest configuration | Armless open-side design | |
| Cantilever support | Continuous S-shaped structural frame without separate legs | |
| Edge safety | Fully rounded padded edges on all surfaces | |
| 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 use | Accent seating for open living areas beside sofas or coffee tables | |
|---|---|---|
| Lobby and lounge area use | Casual waiting seating in boutique offices or hotel lobbies | |
| Bedroom seating application | End-of-bed or corner seating for master bedrooms | |
| Showroom display use | Display piece for interior design showrooms and furniture galleries | |
| Recommended pairing | Pairs with small round side tables for beverage placement | |
| 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
| Furniture durability recommendation | EN 12520:2015 Level 2 | |
|---|---|---|
| Fabric upholstery flammability recommendation | EN 1021:2014 |
US and Canada office-furniture standards
| North America procurement and testing reference | Recommended references: ANSI/BIFMA X5.4 |
|---|
Standards applicable to China-market projects
| Formaldehyde emission recommendation | GB/T 18580E1 grade | |
|---|---|---|
| Upholstered furniture safety recommendation | GB 28007 |
This product must meet the following technical requirements: 1. Formaldehyde emission recommendation: GB/T 18580E1 grade; 2. Upholstered furniture safety recommendation: GB 28007; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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