| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| overall dimensions | 640 x 625 x 940 mm | |
|---|---|---|
| seat height | 510 mm | |
| seat width | 570 mm | |
| seat depth | 445 mm | |
| seat cushion thickness | 146 mm | |
| backrest height | 380 mm | |
| armrest height from seat | 220 mm | |
| armrest width | 35 mm | |
| leg diameter at floor | 35 mm | |
| open cutout height under arm | 200 mm | |
| brass ferrule height | 30 mm | |
| backrest width at widest point | 520 mm | |
| leg taper diameter at seat rail | 40 mm | |
| floor footprint | 530 x 510 mm | |
| Finished Seat Cushion Thickness | 90 mm | |
| Backrest Padding Thickness | 70 mm |
Net weight / load capacity / users / durability
| net weight per chair | 13 kg | |
|---|---|---|
| recommended static load capacity | 136 kg | |
| seat foam density | 45 kg/m³ | |
| foam rebound rate | 45% | |
| seam stitch pitch | 8 stitches per 30 mm | |
| upholstery abrasion resistance | 30000 Martindale cycles | |
| brass ferrule wall thickness | 1.5 mm | |
| frame joint static load rating | 180 kg | |
| floor protection rating | Non-marking contact | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% |
Core acceptance fields · Panels / hardware / frame / upholstery
| primary frame structure | 1.0 mm thick black powder-coated steel tube | |
|---|---|---|
| seat panel base | 12 mm thick multilayer plywood | |
| seat and back padding | High-density polyurethane foam | |
| top upholstery layer | Matte light grey polyurethane faux leather | |
| curved armrests | Foam-wrapped steel tube matching frame finish | |
| leg ferrules | Brass-finish zinc alloy caps | |
| floor contact pads | Felt inserts under brass ferrules | |
| connecting hardware | Zinc-plated steel bolts and dowels | |
| backrest panel | Curved plywood form wrapped in foam and upholstery | |
| frame finish | Matte black powder coating | |
| upholstery backing | Non-woven polyester fabric | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board |
Adjustment / rotation / tilt / mobility / storage features
| seating orientation | Fixed upright position | |
|---|---|---|
| arm support function | Continuous curved armrests support forearms | |
| floor protection function | Brass ferrules with felt pads slide smoothly | |
| assembly configuration | Knockdown assembly with included hardware | |
| back support function | Rounded curved back supports lumbar region | |
| stacking capability | Non-stacking fixed leg structure | |
| weight distribution design | Four evenly spaced tapered legs spread load | |
| cleaning suitability | Smooth faux leather surface wipes clean | |
| 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 use | Seating for 6person standard height dining tables | |
|---|---|---|
| cafe and bistro seating | Compact footprint fits small commercial dining spaces | |
| home office guest seating | Compact armchair for visitor seating beside desks | |
| hotel restaurant guest seating | Uniform design suitable for multi-unit hospitality installation | |
| small apartment breakfast nooks | Space-saving curved arm design works in compact dining areas | |
| event and banquet auxiliary seating | Stackable alternative for low-volume formal event setups | |
| 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 | Strength, durability and safety requirements for domestic seating | |
|---|---|---|
| EN 1022:2018 | Stability test methods for domestic seating furniture | |
| EN 1728:2014 | Test methods for seating strength and durability |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden furniture for general use | |
|---|---|---|
| GB/T 24821-2009 | Performance requirements for dining tables and chairs | |
| GB 18584-2001 | Limit of harmful substances in wood furniture for indoor use |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden furniture for general use; 2. GB/T 24821-2009: Performance requirements for dining tables and chairs; 3. GB 18584-2001: Limit of harmful substances in wood furniture for indoor use; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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