| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall footprint | 3660 x 2840 x 790 mm | |
|---|---|---|
| Seat height | 450 mm | |
| Seat depth | 650 mm | |
| Per-person seat width | 600 mm | |
| Central backrest height | 420 mm | |
| Central backrest thickness | 200 mm | |
| Seat cushion thickness | 120 mm | |
| Support leg height | 50 mm | |
| Support leg diameter | 30 mm | |
| Clearance under sofa base | 30 mm | |
| Back Cushion Thickness | 160 mm | |
| Leg Height / Floor Clearance | 160 mm |
Net weight / load capacity / users / durability
| Total seating capacity | 12 persons | |
|---|---|---|
| Total product net weight | 420 kg | |
| Per-seat static load capacity | 136 kg | |
| Recommended total distributed load | 1632 kg | |
| Upholstery Martindale abrasion resistance | 50000 cycles | |
| Seat foam density | 40 kg/m³ | |
| Seat foam rebound rate | 45% | |
| Frame structural warranty | 5 years | |
| Seat Foam Density / Rebound | 40 kg/m³ / 60% | |
| Upholstery Abrasion Reference | Fabric 60000 cycles; leather-class cover 1.4 mm |
Core acceptance fields · Panels / hardware / frame / upholstery
| Outer seat upholstery | Woven polyester fabric, light grey finish | |
|---|---|---|
| Central backrest upholstery | Woven polyester fabric, mustard yellow finish | |
| Seat cushion filling | High-resilience polyurethane foam, layered top comfort pad | |
| Central backrest filling | High-density polyurethane foam, dual-sided even padding | |
| Internal structural frame | Kiln-dried solid pine + 18mm multi-layer plywood, 12% moisture content | |
| Seat suspension system | 3.8mm sinuous steel springs + 50mm wide high-tension elastic webbing | |
| Support legs | Black powder-coated mild steel, cylindrical adjustable glide feet | |
| Seam stitching | Polyester bonded thread, 8 stitches per 30mm seam pitch | |
| Upholstery backing | 100g non-woven polypropylene fabric | |
| Timber Frame Section / Moisture | Primary section ≥30 × 50 mm; recommended moisture 12% | |
| Spring / Webbing Specification | Sinuous spring wire 4 mm; elastic webbing 70 mm wide | |
| Leg Connector Specification | Reference M8-M10 with at least 1 mechanical fixing per leg |
Adjustment / rotation / tilt / mobility / storage features
| Modular connection | Steel alligator clip connectors between individual curved seat and back modules | |
|---|---|---|
| Dual-facing seating layout | Continuous perimeter outer seating plus inner seating facing outward along central backrest | |
| Adjustable glide feet | 10mm height adjustment range per leg to compensate for uneven floors | |
| Stationary fixed design | No recline, tilt, or movable seating mechanisms | |
| Floor protection | Non-marking nylon glide pads at base of each steel leg | |
| Upholstery maintenance | Removable seat cushion covers with hidden zipper fasteners | |
| Configuration compatibility | Modules can be reconfigured into partial curves or linear sections using same connectors | |
| Cushion Service Configuration | Recommended 2removable/replaceable cushion methods |
Verified carton / gross weight / assembly / loading data
| Reference Package Count | 1 set / 2 cartons | |
|---|---|---|
| Reference Assembly Time | 40 minutes per set | |
| Reference Module Carton Dimensions | 2200× 1050× 850 mm | |
| Reference Packaging Volume | 1.8 m³/item | |
| Reference Packaged Gross Weight | 110 kg/item |
Recommended spaces / users / usage modes
| Office breakout zones | Provides informal conversational seating for employee collaboration and rest breaks | |
|---|---|---|
| Public waiting areas | Accommodates high-foot-traffic lobbies, healthcare waiting rooms and transit hubs | |
| Hotel reception lounges | Creates a central feature seating island for guest gathering and relaxation | |
| Showroom and exhibition spaces | Functions as a statement seating piece for product display and visitor seating | |
| Education common areas | Serves casual group study and social seating in university campus hubs | |
| Co-working spaces | Supports flexible small-group discussion and informal meeting use in open plans |
EU Market Access Requirements* EN Standards
| EN 13761:2002 | Furniture - Seating for public areas, test methods for strength and durability | |
|---|---|---|
| EN 1021-1:2014 | Upholstered furniture ignitability resistance to smouldering cigarette source |
US and Canada office-furniture standards
| ANSI/BIFMA X5.4-2020 | Standard for lounge seating, static load and durability testing requirements | |
|---|---|---|
| ANSI/BIFMA e3-2019 | Furniture sustainability standard for material emissions and environmental performance |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden furniture, applicable to internal frame and structural integrity | |
|---|---|---|
| GB 20400-2006 | Limit of harmful substances in leather and fabric upholstery, applicable to textile materials | |
| GB/T 19001-2016 | Quality management system guidance for commercial furniture production and delivery |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden furniture, applicable to internal frame and structural integrity; 2. GB 20400-2006: Limit of harmful substances in leather and fabric upholstery, applicable to textile materials; 3. GB/T 19001-2016: Quality management system guidance for commercial furniture production and delivery; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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