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Company : THRONA SRL
Product : Open
THRONA SRL
  • Designer      :
  • Product type      : chairs institutional seating and chairs
     
Product Description
A multifunctional armchair on a chromed skid frame, available with four different backrest heights, upholstered or in beech wood, natural wengè or white varnished. Characterised by a modern design and prestigious materials in a collection for chairs ideal for institutional environments. This line express efficiency, dynamism, and contemporary style. The swivel version is available as well.
 
Base materials and finishings
Five star base. Diameter and dimensions in accordance to UNI, DIN and BIFMA norms.
Raised version in grey or polished aluminium, diameter 700 mm.
 
Structure material and finishings
back rest
12 mm multi-layered beech wood frame, anatomically shaped. Available completely upholstered or in beech wood natural, wengè or white RAL 9016 varnished. Class E1 glue.

Seat

14 mm multi-layered beech wood frame, anatomically shaped. Available completely upholstered or in beech wood natural, wengè or white RAL 9016 varnished. Class E1 glue.

Stuffing material

Seat
: Cold moulded flexible polyurethane (PU Flex) Class 1 (CL 1) with variable thickness and 60 gr/lt density, self-extinguish according to C.S.E.R.F. 4/83 standards. Foam is recyclable and without CFC.
Backrest: Cold moulded flexible polyurethane (PU Flex) Class 1 (CL 1) with 10 mm thickness and 40 gr/lt density, self-extinguish according to C.S.E.R.F. 4/83 standards. Foam is recyclable and without CFC.
Cladding types
Available in Trevira fabric, Mirage, Rennatech, Pegaso, Polyurethane, Vega and leather, from Throna color chart.

Technical characteristics

In steel, chromed round tube 25x2 mm diameter (Asform).

Mechanism
Fixed, with gas lift.
Wheel types and characteristics
Diameter 65 mm, self braking and with rubber ring.
Regulating systems
Gas head lift action, test accordino to DIN 4550, central piston diameter 28 mm, protected by a chromed steel tube diameter 50 mm. Class 4.


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