tender for installation of 27 nos. screens on outfall drain which flows towrads river ganga under bhatpara municipality as per model estimate for screen of (1mx1m) , (m.s. structural works in columns, beams etc. with simple rolled structural members (e.g. joists, angle, channel sections conforming to is: 226, is: 808 & sp (6)- 1964 connected to one another with bracket, gussets, cleats as per design, direction of engineer-in- charge complete including cutting to requisite shape and length, fabrication with necessary bolting, metal annual rate contract welding conforming to is: 816- 1969 & is: 1995 using electrodes of approved make and brand conforming to is:814- 2004, haulage, hoisting and erection all complete. the rate includes the cost of rolled steel section, consumables such as electrodes, gas and hire charge of all tools and plants and labour required for the work including all incidental chages such as electricity charges, labour insurance charges etc. i) for structural works in roof trusses etc. using joists, channels and angles of specified section weighing less than 22.5 kg/ m , m.s. works in framed gratings of window etc.made of round or square bars and frame work or m.s. flats (with the bars securely fixed to the flat bar frame) with or without intermediate flat bar stiffener and fixed with necessary screws etc. complete, as directed. in ground floor. , ordinary cement concrete (mix 1:1.5:3) with graded stone chips (20 mm nominal size) excluding shuttering and reinforcement if any, in ground floor as per relevant is codes. (i) pakur variety , a) supplying godrej mortice lock chromium plated with latch and keys 4 levers, including fitting and fixing complete. , providing anti-corrosive protective coating to inhibit the corression to hysdreinforcement including two coats of anti-corrosive coatings of consumption as per manufactures specification,cleaning etc. complete as per the direction of the engineer-in-charge , add @18% g.s.t. rs. , labour welfare ces