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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)	680 × 700 × 1010 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.

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
Five-star Base Static Load Reference	Acceptance target ≥120 kg; chair reference load 150 kg
Caster Rolling Durability Reference	Acceptance target 30000 cycles
Gas-lift Cycling Reference	Acceptance target 100000 cycles
Upholstery Seam Pitch	4 mm
Recommended Procurement Warranty	Frame 5 years; mechanism/gas lift 3 years; upholstery 2 years

PRODUCT MODULE 03 / 06

Materials & Structure

Core acceptance fields · Panels / hardware / frame / upholstery

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

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
Five-star Base Material Thickness	Metal base wall 3.5 mm; diameter 700 mm
Caster Engineering Specification	5 PU-tread swivel casters, 60 mm diameter

PRODUCT MODULE 04 / 06

Functions & Adjustment

Adjustment / rotation / tilt / mobility / storage features

Data source: Functional configuration; the supplier specification prevails.

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

PRODUCT MODULE 05 / 06

Packaging & Logistics

Verified carton / gross weight / assembly / loading data

Data source: Reference for export quotations and container planning.

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

PRODUCT MODULE 06 / 06

Applications & Usage

Recommended spaces / users / usage modes

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

Recommended Matching Desk Size	2.4 m executive desk
Reference Daily Use Duration	8 hours/day; confirm by ergonomic testing

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 OFC-MB680-UPH is an unbranded mid-back executive office chair with a composed, professional appearance suited to private offices, meeting rooms, and premium residential workspaces. Its dark gray upholstered seat and back create a restrained visual profile, while the polished chrome five-star base and matching chrome gas-lift assembly add a refined contrast. Black fixed arm structures carry dark padded arm pads, and black stationary glides complete the supplied material configuration. The chair’s form balances executive presence with compact mid-back support, making it suitable for pairing with a 2.4 m executive desk or as an upgraded seating option in home studies and professional consultation settings. The seating structure uses a 90 mm finished seat cushion and 70 mm backrest padding, with a 240 mm lumbar support zone. A 540 mm clear width between the armrests provides open seating space. Seat foam is referenced at 45 kg/m³ density with 65% rebound, while back foam is referenced at 38 kg/m³. The upholstery is 1.4 mm thick with a 50000-cycle abrasion reference, and seam pitch is 4 mm. Internally, the seat uses a 14 mm bent plywood or equivalent support board, and the backrest uses a 14 mm bent plywood or composite reinforced frame. Functional details include 360-degree swivel, five-caster multidirectional movement, a 100 mm continuous height-adjustment stroke, and recline to 125 degrees with three suggested lock positions. Tilt tension adjustment has a reference coverage of 120 kg for user-weight adaptation. The engineering specification calls for a Class 4 gas lift with a 50 mm outer tube, a 2.5 mm cold-rolled steel tilt mechanism plate, a 700 mm diameter metal five-star base with 3.5 mm wall thickness, and five 60 mm PU-tread swivel casters. Procurement teams should reconcile the caster specification with the listed stationary glide finish before order confirmation. The base static-load reference includes an acceptance target of 120 kg or more and a chair reference load of 150 kg. Additional reference targets include 30000 caster rolling cycles and 100000 gas-lift cycles. The chair is referenced for eight hours of daily use, subject to ergonomic confirmation. Shipping is one set across two cartons, with 23 kg packaged gross weight, 0.26 cubic meter carton volume, and around 40 minutes assembly time per set. A 20GP container indication is 135 sets at 85 percent space utilization. Buyers should verify finish, mobility components, assembly support, warranty terms, and whether the chair matches intended users and workspace surfaces.

Upholstered Mid-Back Executive Office Chair with Fixed Padded Arms and Five-Star Base Specifications

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