procurement of steel door , window , grill , shutter , collapsible gate , fabrication of any truss etc at various worksites under amarpur/ ompi/ karbook/ silachari r d block and amarpur np under gomati tripura . , manufacturing & supplying of complete plain grill with 19 mm x 4mm square bar higher specification as per required design . , manufacturing & supplying of complete m . s . ornamental grill with square bar of size 4/8/12mm & higher specification as per required design . , manufacturing & supplying of complete m . s . grill gate with 19 mm x 4mm /20 mm x 6 mm / 25 mm x 6 mm ms flat & ms angle of 35 mm x 35 mm x 5mm incl . ms sheet ( 3mm thick ) and other related accessories for complete item / higher specification as per required design . , manufacturing & supplying of complete m . s . grill gate with 40/32/25 mm black iron pipe , ms flat & 3 mm ms sheet and other related accessories for complete item / higher specification as per required design . , manufacturing , supplying & fitting fixing of complete ms collapsible steel gate with vertical channels 20 mm x 10 mm x 2mm braced with flat iron diagonals , 20mm x 5mm size top & bottom rails of iron 40 x 40 x 6mm with 38 mm dia steel pulleys complete with bolt , nut , locking arrangement , stoppers , handles etc incl . applying a priming coat of red lead paint . , manufacturing & supplying of complete steel door ( obb / awc pattern ) inc . steel shutter . , manufacturing & supplying of complete steel window ( obb / awc ) pattern including steel shutter . , fabrication & fitting fixing charge of steel tubular truss incl . cost of all required accesories ( except bip ) - ( bip will be issued from department ) , fabrication charge incl . fitting fixing charge of any old structure with required accessories . ( pipe / angle/ holding down bolt will be issued from department ) . , manufacturing , supplying & fitting fixing of complete m . s . rolling shutter made of 80 x 1 . 35 mm ms laths interlocked together through their entire length & joined together at the end by end locks mounted on specially designed pipe shaft with brackets side guides & arrangement for inside & outside locking push & pull operation complete but incl . fixing of the top cover , ball bearing & spring etc . , manufacturing & supplying of complete steel door as per jail specification . , manufacturing & supplying of complete steel window as per jail specification , manufacturing & supplying of ms grill incl . arrow for boundary wall as per required design & specification . , fabrication & fitting fixing of steel foot suspension bridge . ( materials will be provided from department ) , fabrication & fitting fixing charge of chequered sheet having thickness not less than 5 mm in various sizes as directed by the engineer in charge and having weight not less than 40 . 03 kg per sqmtr and of is specification incl . cost of all required accessories upto worksite .