| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| 3-seater sofa overall dimensions | 1920 x 780 x 730 mm | |
|---|---|---|
| Single armchair overall dimensions | 780 x 730 x 730 mm | |
| Seat height from floor | 420 mm | |
| Seat depth (usable) | 550 mm | |
| Backrest height above seat | 360 mm | |
| Armrest height from floor | 620 mm | |
| Seat cushion thickness | 120 mm | |
| Backrest cushion thickness | 100 mm | |
| Steel tube frame diameter | 25 mm | |
| Clearance under sofa base | 120 mm | |
| Seat width per position | 580 mm | |
| Armrest width | 80 mm | |
| Required minimum layout footprint for full set | 3600 x 2800 mm | |
| Finished Seat Cushion Thickness | 90 mm | |
| Backrest Padding Thickness | 70 mm | |
| Lumbar Support Zone Height | 240 mm |
Net weight / load capacity / users / durability
| Total set net weight range | 135 kg | |
|---|---|---|
| 3-seater sofa static load capacity | 450 kg | |
| Seat foam density | 45 kg/m³ | |
| Foam rebound rate | 45% | |
| Steel frame wall thickness | 1.2 mm | |
| Recommended maximum occupancy per set | 5 people | |
| Upholstery abrasion resistance (Martindale) | 50000 cycles | |
| Seam stitch pitch | 8 stitches per 30mm | |
| Frame joint cyclic load durability | 100000 cycles | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back upholstery | Black polyurethane (PU) leather, matte smooth finish | |
|---|---|---|
| Structural frame | Polished chrome-plated cold-rolled steel tubular frame | |
| Seat cushion padding | High-density polyurethane foam, wrapped with soft polyester fiber layer | |
| Backrest cushion padding | Medium-high density polyurethane foam | |
| Internal support frame under cushions | 12mm thick multilayer plywood board | |
| Frame connection hardware | Zinc-plated steel bolts and welded frame joints | |
| Base foot pads | Non-slip polyethylene plastic glides | |
| Upholstery stitching | High-tenacity polyester thread, matching black color | |
| Seat suspension support | 50mm wide elastic webbing, 40mm spacing across seat frame | |
| Armrest internal structure | 15mm thick plywood core wrapped in matching foam and upholstery | |
| Chrome finish corrosion resistance | 48 hours salt spray resistance | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board |
Adjustment / rotation / tilt / mobility / storage features
| Seating configuration | Fixed modular set consisting of 1 three-seater sofa and 2 single armchairs, arranged for face-to-face or grouped reception layout | |
|---|---|---|
| Frame design | Exposed external tubular steel frame fully surrounds upholstered seat and back modules, eliminates need for separate external arm covers | |
| Floor protection | All frame legs fitted with non-marking plastic glides, suitable for hard tile, wood, and low-pile carpet office flooring without scratching surfaces | |
| Cleaning access | 120mm clearance under lower frame rail allows standard vacuum cleaners and mops to access floor space beneath units | |
| Cushion design | Fixed non-removable seat and back cushions, secured to internal frame to prevent shifting during regular use | |
| Structural stability | Center support leg fitted under middle of 3-seater sofa to prevent frame sagging under distributed load | |
| Upholstery performance | Stain-resistant smooth PU surface allows wipe-cleaning with standard mild office cleaning agents, suitable for high-traffic public reception areas | |
| Assembly requirement | Fully welded frame units shipped fully assembled, only require glide installation and placement on site | |
| 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
| Corporate office reception lobbies | Suitable for front-of-house waiting areas, provides formal professional seating for 5 visitors at a time, black upholstery maintains clean appearance with heavy use | |
|---|---|---|
| Executive office meeting zones | Can be placed in private executive offices for small informal guest meetings, chrome frame complements modern minimalist office decor | |
| Public institution waiting areas | Suitable for government, bank, or healthcare public waiting zones, durable PU upholstery withstands high daily visitor traffic, easy to clean between users | |
| Small business meeting lounges | Appropriate for startup or co-working space breakout areas, 3-piece set creates compact conversation zone without requiring large floor space | |
| Showroom guest seating areas | Can be used in furniture or product showrooms as visitor waiting seating, modern design does not distract from displayed products | |
| Recommended complementary configuration | Pair with a matching chrome-frame glass or wood coffee table (1200x600mm) between seating units to create a complete reception set | |
| 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 1022:2019 | Domestic furniture - Seating - Determination of stability, applicable to verify sofa stability under normal seating load conditions | |
|---|---|---|
| EN 12520:2015 | Furniture - Strength, durability and safety - Requirements for domestic seating, reference for structural strength testing for commercial reception use adapted from domestic seating norms | |
| EN 13759:2011 | Furniture - Seating - Test methods for the determination of armrest strength, applicable to steel tubular armrest load testing |
US and Canada office-furniture standards
| ANSI/BIFMA X5.4-2020 | Lounge Seating Standard, applicable for commercial office lounge/reception seating structural performance, load, and durability testing | |
|---|---|---|
| ANSI/BIFMA X7.1-2021 | Standard for Formaldehyde and TVOC Emissions of Low-Emitting Office Furniture Systems and Seating, applicable for indoor air quality compliance in commercial office spaces |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden furniture, applicable to internal plywood support structure quality and dimensional tolerance checks | |
|---|---|---|
| GB 18584-2001 | Indoor decoration and refurbishing materials - Limit of harmful substances in wooden furniture, applicable for formaldehyde emission testing of internal wooden components | |
| GB/T 16799-2008 | Polyurethane leather for furniture, applicable to PU upholstery material performance and durability requirements |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden furniture, applicable to internal plywood support structure quality and dimensional tolerance checks; 2. GB 18584-2001: Indoor decoration and refurbishing materials - Limit of harmful substances in wooden furniture, applicable for formaldehyde emission testing of internal wooden components; 3. GB/T 16799-2008: Polyurethane leather for furniture, applicable to PU upholstery material performance and durability requirements; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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