| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 520 x 550 x 850 mm | |
|---|---|---|
| Seat height from floor | 500 mm | |
| Seat depth (usable surface) | 420 mm | |
| Seat width (usable surface) | 470 mm | |
| Backrest total height | 410 mm | |
| Leg splay outward offset | 90 mm | |
| Leg tube diameter | 19 mm | |
| Floor to seat front edge height | 480 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
| Net weight per chair | 8.2 kg | |
|---|---|---|
| Maximum static user weight capacity | 125 kg | |
| Recommended daily user weight | 110 kg | |
| Seat foam density | 40 kg/m³ | |
| Seat foam rebound rate | 45% | |
| Cushion padding thickness | 60 mm | |
| Backrest padding thickness | 40 mm | |
| Seam stitch pitch | 8 stitches per 30mm | |
| Upholstery abrasion resistance (Martindale) | 30000 cycles | |
| Standard warranty period | 1 year |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back upholstery | Two-tone matte faux leather | |
|---|---|---|
| Internal support frame | 15 mm thick multi-layer bent plywood | |
| Seat cushion fill | High-density polyurethane foam | |
| Backrest fill | Medium-density polyurethane foam | |
| Support legs | 19 mm diameter black powder-coated steel tubing | |
| Leg floor glides | Injection-molded rubber non-slip feet | |
| Frame joining hardware | Zinc-plated steel KD bolts and inserts | |
| Upholstery attachment | Industrial stapled bond to plywood frame | |
| 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
| Seating mobility | Fixed non-swivel, non-reclining static structure | |
|---|---|---|
| Assembly requirement | Knock-down leg attachment with included hardware | |
| Back support ergonomics | Contoured lumbar curve with horizontal shaping seam | |
| Seat edge design | Waterfall curved front edge to reduce leg pressure | |
| Floor protection | Rubber glides prevent floor scratching and movement noise | |
| Color configuration | Two-tone color blocked upholstery (neutral/contrast tone) | |
| Stackability | Non-stackable fixed leg structure | |
| 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 dining space | Fits standard 750 mm height dining tables for daily meal seating | |
|---|---|---|
| Open-plan kitchen island seating | Compact armless profile suits small-space kitchen counter extension seating | |
| Office reception/meeting space | Professional minimalist aesthetic fits guest side seating in meeting areas | |
| Cafe and casual dining venues | Durable easy-clean upholstery suits light commercial foodservice use | |
| Small apartment multi-use space | Lightweight static design works as occasional desk or accent seating | |
| Recommended table pairing | Matches 760 mm height dining tables or standard meeting tables | |
| 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 | Domestic furniture strength, durability and safety requirements for seating | |
|---|---|---|
| EN 1022:2018 | Domestic seating stability test method for four-leg side chairs | |
| EN 13759:2004 | Upholstered furniture seating foam flammability performance requirements |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden furniture, applicable for internal plywood frame inspection | |
|---|---|---|
| GB 18584-2001 | Limit of harmful substances for interior decoration wooden furniture, formaldehyde emission check | |
| GB/T 16799-2008 | Faux leather (PU/PVC) upholstery material performance and defect limits |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden furniture, applicable for internal plywood frame inspection; 2. GB 18584-2001: Limit of harmful substances for interior decoration wooden furniture, formaldehyde emission check; 3. GB/T 16799-2008: Faux leather (PU/PVC) upholstery material performance and defect limits; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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