18.20 (a)

Supplying openable steel windows, of standard rolled steel Z sections, joints mitered and Electrically flash-welded, with iron fittings including necessary iron handles, Peg-stay catchers bolts, iron plugs and pressed steel projected hinges and glazing clips, complete (Excluding glazing ) and finished with two coats of ready mixed paint red lead non setting primer Upto 1 sqm area