| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 700 x 570 x 820 mm | |
|---|---|---|
| Seat height | 450 mm | |
| Seat width | 520 mm | |
| Seat depth | 480 mm | |
| Seat cushion thickness | 80 mm | |
| Armrest height above seat | 220 mm | |
| Backrest height above seat | 400 mm | |
| Backrest splat width | 120 mm | |
| Tubular steel frame diameter | 25 mm | |
| Front leg clearance | 600 mm | |
| Footrest height above floor | 150 mm | |
| Armrest pad length | 300 mm | |
| Stretcher bar diameter | 16 mm | |
| Finished Seat Cushion Thickness | 90 mm | |
| Backrest Padding Thickness | 70 mm | |
| Lumbar Support Zone Height | 240 mm |
Net weight / load capacity / users / durability
| Net weight per chair | 10 kg | |
|---|---|---|
| Static load capacity | 113 kg | |
| Recommended maximum user weight | 110 kg | |
| Seat foam density | 45 kg/m³ | |
| Seat foam rebound rate | 60% | |
| Backrest static load test | 76 kg | |
| Upholstery abrasion resistance | 30000 Martindale cycles | |
| Frame finish scratch resistance | Grade 2 | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% | |
| Back Foam Density Reference | 38 kg/m³ |
Core acceptance fields · Panels / hardware / frame / upholstery
| Frame construction | 25mm diameter tubular steel with dark matte powder coating | |
|---|---|---|
| Seat upholstery | Beige woven polyester fabric, 0.8mm thickness | |
| Seat filling | High-resilience polyurethane foam, 80mm thickness | |
| Armrest pads | Beige upholstered wrap over tubular steel armrests | |
| Backrest construction | Curved tubular steel top rail, central steel splat with semi-circular slat cutout | |
| Stretcher system | 16mm diameter tubular steel H-shape cross stretchers welded to legs | |
| Foot caps | Non-slip polyethylene floor protectors fitted to leg bases | |
| Surface treatment | Electrostatic powder coating on all metal components | |
| Seam stitching | Reinforced polyester thread with 8mm seam pitch | |
| 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
| Seating function | Fixed upright seating position for dining, tea service or meeting use | |
|---|---|---|
| Arm support | Padded horizontal armrests provide upper extremity support during seated use | |
| Back support | Curved mid-height backrest with central splat provides lumbar support | |
| Frame stability | H-shape welded cross stretchers reduce frame wobble during regular use | |
| Floor protection | Plastic foot caps prevent hard metal legs from scratching hard floor surfaces | |
| Seat comfort | 80mm foam cushion distributes seated weight to reduce pressure points | |
| Air circulation | Open backrest cutout design promotes airflow behind the user | |
| 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
| Dining area application | Suitable for residential dining rooms paired with 750mm height dining tables | |
|---|---|---|
| Tea room application | Ideal for new Chinese style tea spaces and tea house seating | |
| Commercial hospitality use | Suitable for restaurant private rooms, boutique cafes and hotel lounge areas | |
| Reception area use | Fits office reception and meeting room guest seating | |
| Style matching | Pairs with new Chinese, modern minimalist and wabi-sabi interior design schemes | |
| Configuration recommendation | Recommended for use with 6chair sets around rectangular or round dining 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
| Furniture strength test | EN 12520:2015 | |
|---|---|---|
| Upholstered furniture fire safety | EN 1021:2014 | |
| Metal furniture surface finish | EN 13722:2004 |
Standards applicable to China-market projects
| General technical requirement | GB/T 3324 | |
|---|---|---|
| Upholstered furniture safety | GB 20400 | |
| Furniture mechanical test | GB/T 10357.3 |
This product must meet the following technical requirements: 1. General technical requirement: GB/T 3324; 2. Upholstered furniture safety: GB 20400; 3. Furniture mechanical test: GB/T 10357.3; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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