supplying and installing 20 no minimum 3 years old machine on rent basis and provide annual maintenance ( under total care for the same at various offices of mumbai board supplying and installing 20 no minimum 3 years old machine on rent basis and provide annual maintenance under total care for the same at various offices of mumbai board , laying and jointing pvc pipe . heading , supplying and installing 20 no minimum 3 years old photocopier machine on rent and provide annual maintenance ( under total care ) for the same at various offices of mumbai board ( except paper ) , brick work in c . m 1:5 mix using 2nd class ground moulded chamber burnt bricks with including cost and conveyance of all materials and including all labour charges etc complete , plastering in c . m 1:5-12 mm thick with including cost and conveyance of all materials and including all labour charges etc complete