| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| overall dimensions | 540 x 630 x 880 mm | |
|---|---|---|
| seat height | 500 mm | |
| seat width | 480 mm | |
| seat depth | 430 mm | |
| seat cushion thickness | 80 mm | |
| backrest height above seat | 366 mm | |
| backrest width | 470 mm | |
| leg diameter at floor contact | 32 mm | |
| front leg spread width | 490 mm | |
| rear leg splay depth | 590 mm | |
| knee clearance under seat | 420 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 | 18 kg | |
|---|---|---|
| static seat load capacity | 136 kg | |
| cushion foam density | 45 kg/m³ | |
| foam rebound rate | 55% | |
| upholstery abrasion resistance | 30000 Martindale cycles | |
| seam stitch pitch | 8 stitches per 30 mm | |
| structural joint cyclic load rating | 10000 cycles | |
| leg floor protection pad diameter | 25 mm | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% | |
| Back Foam Density Reference | 38 kg/m³ |
Core acceptance fields · Panels / hardware / frame / upholstery
| legs and support frame | Walnut-finished solid rubberwood, 25mm section thickness | |
|---|---|---|
| seat suspension base | 12mm thick plywood support panel under cushion | |
| seat cushion padding | High-density polyurethane foam, wrapped in 20g Dacron batting | |
| backrest padding | 30mm thick medium-density polyurethane foam | |
| upholstery fabric | Woven linen-look polyester, 0.6mm fabric thickness | |
| frame joinery hardware | Zinc-plated steel corner brackets and wood screws | |
| floor contact pads | Felt anti-scratch pads affixed to each leg base | |
| back support rails | Solid wood cross brace between rear legs | |
| 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
| fixed seating position | No tilt, swivel or height adjustment, stable 4-point floor contact | |
|---|---|---|
| floor leveling capability | Minor height adjustment via felt pad shims at leg bases | |
| partial knockdown assembly | Legs attach to seat frame with included hardware, no special tools required | |
| stackable configuration | Non-stackable fixed frame design, intended for stationary dining placement | |
| back support ergonomics | Curved oval back aligns with lumbar region for upright dining posture | |
| seat edge comfort | Rounded front seat edge reduces pressure on back of thighs | |
| upholstery maintenance | Spot-cleanable woven fabric resists light staining for regular use | |
| 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 room | Seating for 6seat dining tables, matches mid-century modern interiors | |
|---|---|---|
| kitchen breakfast nook | Casual seating for kitchen counter-height or standard tables | |
| home office guest seating | Side seating for home desk or meeting nook areas | |
| café and bistro seating | Light commercial use for casual dining venues | |
| hotel guest room seating | Compact side chair for hotel room desk or lounge corner | |
| small apartment multi-use space | Space-efficient seating for combined living and dining areas | |
| 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 for seating units | |
|---|---|---|
| EN 1022:2018 | Stability test standard for non-adjustable residential seating |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden furniture, applicable to wood frame chairs | |
|---|---|---|
| GB/T 16799-2008 | Upholstered furniture durability safety requirements for fixed seating |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden furniture, applicable to wood frame chairs; 2. GB/T 16799-2008: Upholstered furniture durability safety requirements for fixed seating; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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