| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 780 x 800 x 800 mm | |
|---|---|---|
| Seat width | 520 mm | |
| Seat depth | 520 mm | |
| Seat height from floor | 480 mm | |
| Interior backrest height above seat | 350 mm | |
| Armrest height above seat | 220 mm | |
| Leg height from floor | 120 mm | |
| Seat cushion thickness | 114 mm | |
| Backrest padding thickness | 80 mm | |
| Leg base spread width | 620 mm | |
| Finished Seat Cushion Thickness | 90 mm | |
| Lumbar Support Zone Height | 240 mm | |
| Clear Width Between Armrests | 540 mm |
Net weight / load capacity / users / durability
| Recommended static weight capacity | 136 kg | |
|---|---|---|
| Product net weight | 22 kg | |
| Seat foam density | 35 kg/m³ | |
| Foam rebound rate | 45% | |
| Upholstery abrasion resistance | 30000 cycles | |
| Leg static load capacity per leg | 80 kg | |
| Seam stitch pitch | 8 stitches per 30mm | |
| 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 |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back upholstery | Smooth matte woven velvet/PU leather | |
|---|---|---|
| Inner support frame | Solid pine + E1 grade engineered wood board | |
| Seat cushion padding | High-density polyurethane foam with polyester wrap | |
| Backrest padding | Medium-density polyurethane foam | |
| Support legs | Tapered brass-toned coated steel tube, 25mm diameter | |
| Underside dust cover | Black non-woven fabric | |
| Assembly hardware | Zinc-plated steel screws with threaded inserts | |
| Surface finish on metal legs | Electroplated brass finish, scratch-resistant clear topcoat | |
| 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
| Base configuration | Fixed static four-leg design with no swivel or recline | |
|---|---|---|
| Assembly requirement | Knock-down assembly, legs attached with included hardware | |
| Seating ergonomics | Semi-enclosed wrap-around back and arms for side support | |
| Weight distribution | Four evenly spaced legs for stability on hard flooring | |
| Cleaning compatibility | Suitable for solvent-based upholstery cleaning | |
| Floor protection | Small non-marking plastic glides at each leg base | |
| Color availability | Multiple upholstery color options including brown and off-white | |
| 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
| Packaging materials | 5-layer corrugated carton, EPS corner protection, plastic wrap | |
|---|---|---|
| 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 | Suitable as paired accent seating next to floor lamps or side tables | |
|---|---|---|
| Bedroom reading nook | Compact footprint fits small corner spaces for casual reading | |
| Boutique office reception area | Soft rounded silhouette creates welcoming guest seating | |
| Hotel guest room lounge zone | Durable upholstery and static base suit high-turnover accommodation use | |
| Waiting area small seating cluster | Pairs well with coffee tables for low-capacity visitor waiting | |
| 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 | |
|---|---|---|
| EN 1021-1:2014 | Upholstered furniture ignition resistance smouldering cigarette test |
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 | |
|---|---|---|
| GB 18584-2001 | Formaldehyde emission limit applicable for indoor residential wood furniture | |
| GB/T 19001-2016 | Quality management system reference for production consistency |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements applicable to wooden frame upholstered furniture; 2. GB 18584-2001: Formaldehyde emission limit applicable for indoor residential wood furniture; 3. GB/T 19001-2016: Quality management system reference for production consistency; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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