bids are invited for 1 perforated cable tray with following specifications ( 1 ) material: anodised aluminium alloy as per is:737:1974 grade 19000 h2 ( 2 ) length of each section: 2500 mm, + / - 5 mm ( 3 ) width: 100 mm, + / - 2 mm ( 4 ) height: 50 mm and bend 5 mm, + / - 1 mm ( 5 ) thickness: 2 mm, + / - 0.2 mm ( 6 ) perforations: uniform pattern ( 7 ) as per reference drawing rcf / dwg / amm / inst / tray / 02 2 coupler plate for 50/75 mm perforated cable tray with following specifications (1) material: anodised aluminium alloy as per is:737:1974 grade 19000 h2 (2) dimensions: 120 mm x 25 mm, thickness: 2 mm (3) perforations: uniform pattern (4) the coupler set consist of 2 plates with 8 numbers hex head galvanised steel nuts and bolts (l=15 mm) and 16 numbers washer (5) as per reference drawing rcf/dwg/amm/inst/tray/01 3 90 deg. horizontal bend circular, with 4 no coupler plates with 16 no ss bolt,nut & washers for 100 mm width x 50mm height cable tray, shall be perforated, mat: anodised alumimium alloy. total quantity : 530