tender for general maintenance works of gwups thannithodu; 1 detailed estimate 2 15.31:dismantling tiled roofing with battens, boarding etc. complete including stacking of serviceable material and disposal of unserviceable material within 50 metres lead. 3 50.4.1.1:providing and laying in position cement concrete 1:2:4 ( 1 cement : 2 coarse sand : 4 graded stone aggregate 12.5 mm nominal size ) up to floor five level excluding the cost of centering, shuttering, finishing for leveling coarse of floor and roof etc. 4 5.22a.1:steel reinforcement for r.c.c work including straightening, cutting, bending, placing in position and binding all complete above plinth level.mild steel and medium tensile steel bars 5 5.9.5:centering and shuttering including strutting, etc. and removal of form for:lintels, beams, plinth beams, girders bressumers and cantilevers 6 50.10.1:steel work in built up g i tubular ( round, square or rectangular hollow tubes etc. ) trusses etc., including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer, including welding and bolted with special shaped washers etc. complete 7 13.61.1:painting with synthetic enamel paint of approved brand and manufacture to give an even shade:two or more coats on new work 8 od254411 / 2022-2023:providing & fixing on roof pressed mangalore tile ( departmental ) of 20 mm nominal thickness and of approved size and as per approved pattern on steel frame work complete ( steel frame work to be paid separately ) 9 12.48:providing & fixing on roof pressed clay tile ( mangalore tile ) of 20 mm nominal thickness and of approved size and as per approved pattern on steel frame work complete ( steel frame work to be paid separately ) 10 12.49:providing & laying on roof pressed clay tile ridge ( mangalore tile ) of 20 mm thickness and of approved pattern on steel frame work complete ( steel frame work to be paid separately ) . 11 od254412 / 2022-2023:supplying and fixing 150mmdia pvc pipe half portion for gutter including cost of labour , conveyance 12 od254413 / 2022-2023:engaging coolie