| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 620 x 610 x 820 mm | |
|---|---|---|
| Seat height | 520 mm | |
| Seat width | 515 mm | |
| Seat depth | 510 mm | |
| Backrest height above seat | 380 mm | |
| Armrest height above seat | 200 mm | |
| Leg splay diameter at floor | 580 mm | |
| Seat cushion thickness | 115 mm | |
| Leg thickness at floor contact | 30 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 | 10 kg | |
|---|---|---|
| Recommended static load capacity | 150 kg | |
| Seat foam density | 40 kg/m³ | |
| Foam rebound rate | 45% | |
| Upholstery abrasion resistance | 30000 Martindale cycles | |
| Recommended daily use duration per seating | 4 hours | |
| Seam stitch pitch | 8 mm | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% | |
| Back Foam Density Reference | 38 kg/m³ | |
| Upholstery Thickness / Abrasion Reference | 1.4 mm / 50000 cycles |
Core acceptance fields · Panels / hardware / frame / upholstery
| Back and arm shell | Matte dark blue molded plywood composite with smooth lacquer finish | |
|---|---|---|
| Seat upholstery | Woven grey polyester fabric with tight plain weave | |
| Seat padding | High-density polyurethane foam core with fiber wrap | |
| Legs | Dark walnut-stained solid beech wood, tapered splayed profile | |
| Connection hardware | Powder-coated steel mounting brackets and hex screws | |
| Foot glides | Non-marking black plastic floor protection pads | |
| Shell finish | Scratch-resistant matte PU lacquer coating | |
| Internal frame support | 12mm thick plywood seat base under cushion | |
| 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 motion | Fixed non-swivel, non-reclining static structure | |
|---|---|---|
| Back support | Upright 100-degree back angle optimized for dining posture | |
| Arm support | Integrated wrap-around armrests with open cutout between back and arm | |
| Floor protection | Non-slip glides prevent floor scratching and reduce movement noise | |
| Assembly requirement | Knock-down leg attachment with included hardware kit | |
| Stacking capability | Non-stackable fixed design | |
| Weight distribution | Splayed four-leg layout distributes load evenly across floor contact points | |
| 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 standard 750mm height dining tables for daily family meals | |
|---|---|---|
| Cafe and casual restaurant | Light commercial seating for food service venues with moderate traffic | |
| Office breakout area | Seating for informal meeting spaces and employee break zones | |
| Home office guest seating | Side seating for home workspaces for visitor use | |
| Hospitality waiting areas | Seating for boutique hotel lobbies and reception waiting zones | |
| Recommended table clearance | 270 mm minimum knee space under table for comfortable leg placement | |
| 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 for domestic seating, applicable for home dining use | |
|---|---|---|
| EN 1022:2018 | Stability test standard for seating furniture, applicable to four-leg chair structure |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden furniture, applicable to wood structural components | |
|---|---|---|
| GB/T 1952.2-2011 | Technical requirements for upholstered furniture seating, applicable to padded seat |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden furniture, applicable to wood structural components; 2. GB/T 1952.2-2011: Technical requirements for upholstered furniture seating, applicable to padded seat; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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