| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| overall dimensions | 630 x 640 x 950 mm | |
|---|---|---|
| seat height | 480 mm | |
| seat width | 520 mm | |
| seat depth | 480 mm | |
| seat cushion thickness | 115 mm | |
| upper backrest pad height | 80 mm | |
| upper backrest pad width | 480 mm | |
| armrest height from floor | 700 mm | |
| armrest height above seat | 220 mm | |
| leg section size | 30 x 30 mm | |
| under-seat knee clearance height | 450 mm | |
| under-seat knee clearance depth | 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 | 14 kg | |
|---|---|---|
| maximum static load capacity | 300 kg | |
| seat foam density | 45 kg/m³ | |
| seat foam rebound rate | 60% | |
| backrest pad foam thickness | 40 mm | |
| floor protection pad diameter | 20 mm | |
| seam stitch pitch | 8 stitches per 30 mm | |
| warranty period | 1 year | |
| available color options | 4 units | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% |
Core acceptance fields · Panels / hardware / frame / upholstery
| main frame | Solid black-stained hardwood with matte finish | |
|---|---|---|
| seat upholstery | Light neutral woven polyester-linen blend fabric | |
| seat cushion core | High-density polyurethane foam wrapped in soft polyester fiber | |
| upper backrest pad | Fabric-upholstered high-density foam fixed to curved wood frame | |
| frame joinery | Mortise-and-tenon wood joints with reinforced adhesive bonding | |
| leg feet | Hard plastic glides with felt floor protection pads | |
| seat support base | 12 mm thick plywood panel fixed to wood seat frame | |
| upholstery fabric abrasion resistance | 30000 Martindale cycles | |
| frame finish thickness | 0.15 mm matte black wood lacquer | |
| 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 |
Adjustment / rotation / tilt / mobility / storage features
| armrest structure | Continuous curved wood member connecting front legs to upper back frame | |
|---|---|---|
| seating support | Fixed rigid seat platform with padded cushion providing upright dining posture | |
| back support | Narrow horizontal padded upper rest supporting the lumbar-thoracic transition | |
| floor contact | Fixed non-swivel legs with anti-slip felt glides | |
| seat cushion design | Removable upholstered cushion secured to seat frame with hidden hook-and-loop fasteners | |
| structural rigidity | Mortise-and-tenon joint construction rated for 100000 repeated seating cycles | |
| stacking capability | Non-stackable design due to continuous curved arm geometry | |
| assembly requirement | Partial knock-down leg attachment with included hex key hardware | |
| 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 | Suitable for standard height dining tables with 760 mm worktops | |
|---|---|---|
| cafe and tea house seating | Appropriate for light commercial food service spaces with mixed table heights | |
| office reception and meeting areas | Suitable for guest seating in negotiation or lounge meeting zones | |
| bedroom vanity seating | Usable as dressing table chair with standard vanity table heights | |
| hotel guest room seating | Suitable as desk or corner accent chair in mid-range hotel rooms | |
| open plan kitchen islands | Compatible with kitchen counter overhangs of 450 mm knee depth | |
| 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 applicable to upright dining chairs | |
| EN 16139:2013 | Strength and durability requirements for non-domestic light contract seating |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements applicable to wooden furniture for domestic use | |
|---|---|---|
| GB 18584-2001 | Limit of harmful substances applicable to interior wooden furniture materials | |
| GB/T 1952.1-2013 | Mechanical performance test methods for seating furniture | |
| GB/T 29894-2013 | Surface coating durability requirements applicable to wood furniture frames |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements applicable to wooden furniture for domestic use; 2. GB 18584-2001: Limit of harmful substances applicable to interior wooden furniture materials; 3. GB/T 1952.1-2013: Mechanical performance test methods for seating furniture; 4. GB/T 29894-2013: Surface coating durability requirements applicable to wood furniture frames; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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