providing and fixing retro reflective road signage under sd v sad apwd port blair whenever required 3rd call-manufacturing, supplying and fixing retro reflective sign boards made up of 2 mm thick aluminium sheet, face to be fully covered with high intensity encapsulated type heat activated retro reflective sheeting conforming to type - iv of astm-d 4956-01 in blue and silver white or other colour combination including subject matter, message (bi-lingual), symbols and borders etc. as per irc ; 67:2001, pasted on substrate by an adhesive backing which shall be activated by applying heat and pressure conforming to class -2 of astm-d-4956-01 and fixing the same with suitable sized aluminium alloy rivets @ 20 cm c/c to back support frame of m.s. angle iron of size 25x25x3 mm along with theft resistant measures, mounted and fixed with 2 nos. m.s. angles of size 35x35x5 mm to a vertical post made up to m.s. tee section ismt 50x50x6 mm welded with base plate of size 100x100x5 mm at the bottom end and including making holes in pipes, angles flats, providing & fixing m.s. message plate of required size, steel work to be painted with two or more coats of synthetic enamel paint of required shade and of approved brand & manufacture over priming coat of zinc chromate yellow primer (vertical ms-tee support to be painted in black and white colours). backside of aluminium sheet to be painted with two or more coats of epoxy paint over and including appropriate priming coat including all leads and lifts etc. complete as per drawing , specification and direction of engineer-in-charge. 2 cautionary/warningsignboardsofequilateraltriangular shape having each side of 900 mm with support length of 3650 mm