| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall annular dimensions | 3880 x 3880 x 800 mm | |
|---|---|---|
| Seat height from floor | 470 mm | |
| Seat depth (outer seating surface) | 680 mm | |
| Inner hollow central diameter | 1200 mm | |
| Continuous backrest height | 330 mm | |
| Per-seat segment width | 600 mm | |
| Upholstery channel segment width | 240 mm | |
| Seat cushion thickness | 150 mm | |
| Backrest padding thickness | 120 mm | |
| Back Cushion Thickness | 160 mm | |
| Leg Height / Floor Clearance | 160 mm |
Net weight / load capacity / users / durability
| Total seating capacity | 16 persons | |
|---|---|---|
| Per-seat static load rating | 150 kg | |
| Total overall static load capacity | 2400 kg | |
| Seat foam density | 45D | |
| Backrest foam density | 35D | |
| Fabric abrasion resistance | 50000 cycles | |
| Seat foam rebound rate | 45% | |
| assembled net weight | 320 kg | |
| 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
| Inner support frame | Kiln-dried solid hardwood/plywood, moisture content ≤9% | |
|---|---|---|
| Seat core padding | 45D high-density polyurethane foam with supportive base layer | |
| Backrest padding | 35D high-resilience polyurethane foam | |
| Outer upholstery | Dark green matte velvet fabric, vertical channel tufted stitching | |
| Underside base layer | Non-slip polypropylene dust cover fabric | |
| Modular connecting hardware | Powder-coated steel interlocking brackets | |
| Stitching construction | Reinforced polyester thread, 8 stitches per inch seam pitch | |
| Bottom anti-slip pads | 3mm thick felt floor protection pads | |
| 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 | |
| Reference Upholstery Color Count | Recommended 8fabric/leather color options |
Adjustment / rotation / tilt / mobility / storage features
| Modular assembly design | 16 curved wedge sections connect with steel brackets to form closed ring | |
|---|---|---|
| Dual-direction orientation | Seating faces inward for group conversation, outer edge faces surrounding space | |
| Fixed floor-placed installation | No legs or casters, rests directly on finished floor surface | |
| Channel-tufted shape retention | Vertical segmented seams prevent foam shifting with daily use | |
| Upholstery cleaning compatibility | Compatible with standard water-based fabric cleaning agents | |
| Custom size adaptability | Supports adjusted outer diameter and upholstery color for commercial projects | |
| Cushion Service Configuration | Recommended 2removable/replaceable cushion methods |
Verified carton / gross weight / assembly / loading data
| Packaging note | Knock-down flat-packed sections with foam corner protection | |
|---|---|---|
| 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
| Corporate lounge spaces | Suitable for open office break areas supporting casual group discussion | |
|---|---|---|
| Hotel lobby waiting areas | Provides statement circular seating for high-traffic public reception zones | |
| Public exhibition and event spaces | Creates a central gathering point for visitor rest and conversation | |
| Co-working common areas | Accommodates large casual groups without obstructing sightlines | |
| Educational campus common rooms | Durable soft seating for student informal gathering and relaxation | |
| Residential large open-plan spaces | Serves as premium statement seating for luxury open living areas |
EU Market Access Requirements* EN Standards
Standards applicable to China-market projects
This product must meet the following technical requirements: 1. Technical standards and test reports must be supplied during tender or purchase confirmation; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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