bids are invited for custom bid for services - online steam leak arresting in high temperature steam and feed water system equipment and pipingitem no 1 transportation and mobilization charges , custom bid for services - item no 2 service charges for online sealing of steam and feed water , custom bid for services - item no 3 idle charges for non execution of online leak arresting works , custom bid for services - item no 4 1 fabrication supply and installation of box type pipe clamp size up to 2 inch , custom bid for services - item no 4 2 fabrication supply and installation of box type pipe clamp size more than 2 inch and up to 5 inch , custom bid for services - item no 4 3 fabrication supply and installation of box type pipe clamp size more than 5 inch and up to 10 inch