providing and fixing profile sheet shede with g . i . pipe on terrace c wing administrative building mumbai a . p . m . c , description , providing and fixing on walls/ ceiling/ floors , 50 mm dia heavy grade havingembossed as isi mark galvanised iron pipes weight of 6 . 33 kg/meter withnecessary fittings . and remaking good the demolished portion and primerof anti corrossive oil paint 2 coats including necessary scaffolding andremoving existing pipe line if necessary and conveying and stacking the samein pwd chowky or as directed etc . complete . , providing and fixing on walls/ ceiling/ floors , 40 mm dia . heavy grade havingembossed as isi mark galvanised iron pipes weight of 4 . 49 kg/meter withnecessary fittings and remaking good the demolished portion and applyingprimer of anti-corrosive oil paint 2 coats including necessary scaffoldingand removing existing pipe line ifnecessary and conveying and stacking the same in pwd chowky or asdirected etc . complete . , providing and fixing of colour coated zinc aluminium ( r ) az150 ( min150 gms/sq . mt . total on each side ) profiled sheets for roofing . the feedmaterial is manufactured out of nominal 0 . 45 mm base metal thickness ( bmt ) ( 0 . 5 mm tct ) , hi-strength steel with min . 550 mpa yield strength , metallic hot dip coated with aluminium-zinc alloy ( 55% aluminiumm 43 . 4% zinc 1 . 6% silicon ) with colorbond ( r ) steel quality super durable polyster paint coat ( with inorganic pigment ) . the paint shallhave a total coating thickness of nominal 35 um , comprising of nominal 25um exterior coat on top surface and nominal10 um reverse coat on back surface . profile sheet shall have nom . 950-1050 mm effective cover width and nominal 25-30 mm deep ribs withsubtle square fluting in the five pan at nominal 180-250 mm center-to- center . the end rib shall be designed for anti-capacity groove . and returnleg . the feed material should have coil manufacturers product details markeda regular interval . including fasteners with min . fastened with min . 25 umzinc-tin alloy coated , hex head , self-drilling screw etc . complete . ( weight of profile 4 . 52 kg/sqm ) 900 mm girth ( surface width ) . ( page no 304/38 . 36 ) , gst 12%