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PRODUCT MODULE 01 / 06

Physical Dimensions

Automatic mm / inch conversion · Core engineering specifications

Data source: Structured from factory data; final measured values prevail.

Overall dimensions (W × D × H)	650 × 650 × 1070 mm
Overall chair footprint	650 x 650 x 1070 mm
Finished Seat Cushion Thickness	90 mm
Backrest Padding Thickness	70 mm
Lumbar Support Zone Height	240 mm
Clear Width Between Armrests	540 mm

PRODUCT MODULE 02 / 06

Weight, Load & Performance

Net weight / load capacity / users / durability

Data source: Product performance data; verify exact test conditions before procurement.

Recommended user weight capacity	136 kg
Net weight	15.8 kg
Seat foam thickness	70 mm
Seat foam density	45 kg/m3
Back mesh load distribution rating	136 kg user load
Base static-load verification target	1134 kg
Gas-lift cycle target	100000 height-adjustment cycles
Caster rolling durability target	100000 cycles
Fabric abrasion acceptance target	50000 Martindale cycles
Seat Foam Density / Rebound Reference	45 kg/m³ / 65%

PRODUCT MODULE 03 / 06

Materials & Structure

Core acceptance fields · Panels / hardware / frame / upholstery

Data source: Subject to the factory material list and inspection report.

Backrest construction	Black flexible mesh stretched over a black molded polymer frame with internal Y-shaped support ribs
Seat cushion	Black upholstered fabric or mesh cover over shaped high-resilience foam with waterfall front
Armrests	Black molded polymer arm posts with flat padded polymer tops and visible underside adjustment bracket
Lift cylinder	Chrome-plated steel gas lift with black telescopic sleeve and top taper
Five-star base	Polished cast or extruded aluminum five-star base with five radiating legs
Casters	Five black twin-wheel swivel casters with hard polymer treads and metal mounting stems

PRODUCT MODULE 04 / 06

Functions & Adjustment

Adjustment / rotation / tilt / mobility / storage features

Data source: Functional configuration; the supplier specification prevails.

Height adjustment	Pneumatic seat-height lift through a 100 mm stroke operated by the visible right-side lever
Back recline	Side-pivot synchronized recline mechanism with 18-degree rearward travel and tension-adjustment knob
Swivel movement	360-degree swivel around the central gas-lift axis supported by the five-star caster base
Mobility	Five-point rolling base uses five 60 mm twin-wheel casters for movement on office floors

PRODUCT MODULE 05 / 06

Packaging & Logistics

Verified carton / gross weight / assembly / loading data

Data source: Reference for export quotations and container planning.

Carton dimensions	680 x 620 x 360 mm
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

PRODUCT MODULE 06 / 06

Applications & Usage

Recommended spaces / users / usage modes

Data source: Recommended applications based on product form and category.

Open-plan office workstations	Suited to standard 720 to 760 mm desks where 440 to 540 mm seat height and rolling mobility support shared task work.
Meeting, study and home-office use	Mid-back mesh support, padded seat and swivel-tilt mechanism fit daily computer work in compact rooms.

STANDARD S1

EU Market Entry Requirements * EN Standards

EU Market Access Requirements* EN Standards

No standards data is available for this market.

STANDARD S2

North America Purchasing & Inspection Reference * ANSI/BIFMA Standards

US and Canada office-furniture standards

North America procurement and testing reference	Recommended references: ANSI/BIFMA X5.1

STANDARD S3

Standards Applicable to China-Market Projects * GB Standards

Standards applicable to China-market projects

No standards data is available for this market.

Standardized tender description text

This product must meet the following technical requirements:
1. Technical standards and test reports must be supplied during tender or purchase confirmation;
Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.

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Product Description

The ETC-MB-AL5D-BLK is an unbranded mid-back ergonomic task chair presented in a coordinated black finish with a polished aluminum five-star base. Its visual profile balances open mesh support with a compact office silhouette: the flexible black mesh back is stretched over a black molded polymer frame with internal Y-shaped support ribs, while the black upholstered seat, armrests, mechanism covers, and twin-wheel casters create a consistent appearance suited to neutral commercial interiors. The bright polished base adds a refined contrast and anchors the chair’s five-point rolling layout. The seat combines a shaped high-resilience foam cushion with a waterfall front and a black fabric or mesh upholstered cover. Product details list a finished cushion thickness of 90 mm, seat foam thickness of 70 mm, and foam density of 45 kg/m3. The backrest includes a 70 mm padding specification and a defined lumbar support zone, while the clear width between armrests is 540 mm. Armrests use black molded polymer posts with flat padded polymer tops and visible underside adjustment brackets. A chrome-plated steel gas lift with a black telescopic sleeve connects the seat to the polished cast or extruded aluminum base. Black twin-wheel swivel casters with hard polymer treads and metal mounting stems complete the construction. Designed for daily task seating, the chair provides pneumatic seat-height adjustment through a 100 mm stroke using the visible right-side lever. The side-pivot synchronized recline mechanism offers 18 degrees of rearward travel and includes a tension-adjustment knob. Users also receive 360-degree swivel movement around the central gas-lift axis and easy mobility from the five 60 mm twin-wheel casters. The recommended user weight capacity is 136 kg, matching the back mesh load distribution rating, while the base static-load verification target is 1134 kg and the gas-lift cycle target is 100000 height-adjustment cycles. The chair is appropriate for open-plan office workstations, shared task areas, meeting rooms, study spaces, and home offices. It is noted as suited to standard 720 to 760 mm desks, where its adjustable seat height and rolling mobility support shared computer-based work. Its mid-back scale also fits compact rooms without the visual mass of a high-backed executive chair. For procurement planning, the chair has an overall footprint of 650 x 650 x 1070 mm and a net weight of 15.8 kg. It is supplied as one set across two cartons, with a packaged gross weight of 23 kg per set and reference assembly time of 40 minutes per set. Buyers should confirm delivery packaging, assembly allocation, floor-wheel compatibility, armrest clearance, and desk-height suitability before placing multi-unit orders.

Mid-Back Black Mesh Ergonomic Task Chair with Polished Aluminum Base Specifications

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