Construction of Degree College at Manihari, District - Katihar in Bihar.

Providing & Placing Executive High Back Chair for Principal of Overall Size (in cm): 76.1W x 76.1D x 112.7-130.2H & 43.1-53.1SH SEAT ASSEMBLY: The Cushioned seat should be made of Injection molded Plastic outer & inner. Plastic Inner should be upholstered with leatherette and moulded High Resilience (HR) Polyurethane foam of Density 45±2 kg/mᶾ, and hardness load 16±2 kgf as per IS:7888 for 25% compression. *Seat Size: 47.0W x 48.0D cm. BACK ASSEMBLY: The Cushioned back should be made of PU Foam with insitu molded MS ERW Round Tube of size 1.9±0.03cm x 0.16±0.0128cm. It should be upholstered with Leatherette. *Back Size: 47.7W x 76.4D cm. ARMRESTS: The armrest top should be moulded from polyurethane (PU) and mounted on to a drop lift adjustable type tubular armrest support made of Ø3.81±0.03 cm x 0.2±0.01 cm thk MS ERW tube having chrome plated finish. The armrest height adjustable up to 6.5±0.5 cm in 5 Steps. ACTIVE BIO-SYNCHRO MECHANISM: The adjustable tilting mechanism should be designed with the following features- > 360° Revolving type. > Front-pivot for tilt with feet resting on ground and continuous lumbar support ensuring more comfort. > Tilt tension adjustment can be operated in seating position. > 5-position Tilt limiter giving option of variable tilt angle to the chair. > Seat/back tilting ratio of 1:2 > The mechanism housing made up of HPDC Aluminium black powder coated. SEAT DEPTH ADJUSTMENT: Seat depth adjustment should be integrated in the seat through a sliding mechanism. Seat depth adjustment range should be of 6.0±0.5 cm. (Make - GODREJ/ZUARI/DORIAN/BETHODEX) ADJUSTABLE BACK SUPPORT: Back Frame should be connected to the Up/Dn mechanism housed in Plastic T spine. It could be adjusted in the range of 7.42±0.5 cm for the comfortable back support to suit individual need. PNEUMATIC HT. ADJUSTMENT: The pneumatic Ht. Adjustment should have an adjustment stroke of 10.0±0.3 cm. PEDESTAL ASSEMBLY: The pedestal should be High Pressure Die cast polished Aluminium and fitted with 5 Nos. twin wheel castors. The pedestal should be 65.0±0.5 cm. pitch-centre dia.(75.0±1.0 cm with castors) TWIN WHEEL CASTOR: 5 Nos. twin wheel castors should be injection moulded in plastic having 6.0±0.1 cm wheel Diameter and assembled to pedestal. (The manufacturer should have ISO 9001, ISO 14001, ISO 18001, ISO 45001, ISO 50001, BIFMA Level2 & Green Guard Certificates)