bids are invited for revolving chair - arm torsion bar mechanism- sr. executive material pedestal base: abs plastic with abs/nylon twin caster wheels minimum 5 nos. of50 mm size, arm material: 19 mm (+/-2 mm) round pipe with cushion, seat material, pu foam covered with mesh fabric, density of pu foam used in seat kg per cu meter (+/-3): 70, density of pu foam used in backrest in kg per cu meter ( +/-3): na, material of fabric back cover/ material for backrest: mesh fabric, material of fabric of seat cover: mesh fabrics, gsm/thickness of fabric +-5% (gram/square meter): 290 gram. , office visitor chairs - conference chair wooden –pc material of fabric back cover: polyester, frame material wood, density of polyurethane foam used in seat +-2 (kg/cub m): 45kg/cub. m, material of fabric of seat cover: fabric , density of polyurethane foam used in backrest +-2 (kg/cub m): 45kg/cub.m, thickness of plywood used in seat +-1(mm): 12 mm, gsm/thickness of fabric +-5(gram per sq. meter): 290 gram per sq. meter, arm material: wooden teak, thickness of polyurethane foam used in backrest in mm (+-3 mm): 62mm, thickness of polyurethane foam used in seat in mm (+-3 mm), 80 mm , office revolving chair - generic pedestal base glass fiber nylon with abs/ nylon twin caster wheels minimum 5 nos, of 50 mm size; arm material: pu foam bonded chrome coted: seat material pressed and moulded plywood with polypropylene cover; material of fabric back cover/ material for backrest: mesh fabric; material of fabric of seat cover: foam laminated mesh fabrics: chair type: central tilt synchronic; with arm: type of backrest support: backrest with lumber support of polypropylene at multilevel across back: arm type; fixed: ergonomic seat design. , foot rest material - 12 mm thick three layer pre-laminated particle boards (wood product) conforming to grade-ii type-ii of is: 12823/ latest dimension length 600 mm, depth: 350 mm, height: 125mm finish finish of exposed edge:cp teak wood lipping warranty period must be up to 3 years certification test reports to be furnished on demand total quantity : 1