Details: suppling & placing a chair. the seat and back should be made up of 1.2 ±0.1cm. thickhot-pressed plywood and upholstered with fabric upholstery covers and mouldedpolyurethane foam. the back foam shall be designed with contoured lumbar supportfor extra comfort. the seat shall be extra thick foam on front edge to give comfort topopliteal area. the dimensions of back shall be 47.5 cm(w) x 58.0 cm(h) and of seatshall be 47.0 cm (w) x 48.0 cm (d). the hr polyurethane foam shall be mouldedwith density= 45±2 kg/m3 and hardness load 16 ± 2 kgf as. per is:7888 for 25%compression. the one-piece armrests shall be injection moulded from blackco.polymer polypropylene. the mechanism shall be designed with 360° revolvingtype, upright-position locking, tilt tension adjustment, seat/back tilting ratio of 1:3.the pneumatic height adjustment shall has an adjustment of 12.0 ±0.3cm.the bellow shall be 3 piece telescopic type and injection moulded in blackpolypropylene. the pedestal shall be injection mou
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