| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 570 x 540 x 850 mm | |
|---|---|---|
| Seat height | 470 mm | |
| Seat width | 520 mm | |
| Seat depth | 495 mm | |
| Backrest height | 450 mm | |
| Armrest height above seat | 200 mm | |
| Leg outer span width | 540 mm | |
| Leg tube diameter | 22 mm | |
| Seat cushion thickness | 80 mm | |
| Backrest padding thickness | 60 mm | |
| Finished Seat Cushion Thickness | 90 mm | |
| Lumbar Support Zone Height | 240 mm | |
| Clear Width Between Armrests | 540 mm |
Net weight / load capacity / users / durability
| Recommended static load capacity | 150 kg | |
|---|---|---|
| Net weight per unit | 8 kg | |
| Seat foam density | 45 kg/m³ | |
| Foam rebound rate | 60% | |
| Upholstery abrasion resistance | 50000 cycles | |
| Leg floor clearance | 150 mm | |
| Recommended user weight limit | 120 kg | |
| 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
| Leg and frame material | 1.2mm thick carbon steel with matte black powder coating | |
|---|---|---|
| Seat upholstery | 1.0mm thick microfiber leather in off-white/beige tone | |
| Seat cushion core | High-density polyurethane foam | |
| Backrest core | Contoured high-elastic foam with central vertical seam | |
| Armrest construction | Integrated curved steel frame wrapped in matching upholstery | |
| Foot pads | Anti-slip silicone pads on each leg bottom | |
| Internal support board | 9mm thick plywood under seat cushion | |
| Backrest frame | Curved steel support bar integrated into main leg frame | |
| 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 function | Fixed upright seating position optimized for tea service and casual negotiation | |
|---|---|---|
| Mobility | Stationary fixed-leg design with no casters or swivel mechanism | |
| Height adjustment | Fixed seat height with no gas lift or adjustment mechanism | |
| Arm support | Continuous curved armrests connecting front legs to back frame for stable elbow support | |
| Back support | Wraparound curved back with central seam for side and upper back support | |
| Floor protection | Silicone foot pads prevent scratching hard flooring and reduce sliding noise | |
| Cleaning feature | Smooth non-porous upholstery surface allows wipe-clean maintenance for tea spill incidents | |
| Recline Angle / Lock Reference | 125° with 3suggested lock positions | |
| Tilt Tension User-weight Range | Reference adjustment coverage 120 kg | |
| 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 tea room use | Matches light neutral aesthetic for home tea spaces and balcony tea sets | |
|---|---|---|
| Commercial negotiation area use | Suitable for office reception, hotel lounge and showroom meeting zones | |
| Casual dining side chair use | Works as additional seating for open-plan dining areas with matching table heights | |
| Club lounge seating use | Appropriate for private club, tea house and boutique cafe guest seating | |
| Recommended configuration | Pair with 760 mm height tea tables or low negotiation tables for ergonomic alignment | |
| User suitability | Designed for adult users during 2 hour seated tea or conversation sessions | |
| 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 | Furniture strength, durability and safety requirements for domestic seating | |
|---|---|---|
| EN 1022:2018 | Seating furniture stability test method for non-adjustable fixed chairs |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden/metal furniture, applicable for structural stability verification | |
|---|---|---|
| GB 18584-2001 | Indoor decorating and refurbishing materials limit of harmful substances for furniture upholstery |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden/metal furniture, applicable for structural stability verification; 2. GB 18584-2001: Indoor decorating and refurbishing materials limit of harmful substances for furniture upholstery; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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