tender for the work of removing the old and dilapidated gi line on the roof of mla niwas-2 (purana) and laying a new cpvc line and connecting water connection to residence number-1-2b to 98b. - providing and fixing chlorinate polyvinyl chloride (cpvc) pipes, having thermal stability for hot & cold water supply, including all cpvc plain & brass threaded fittings, including fixing the pipe with clamps at 1.00 m spacing.this includes jointing of pipes & fittings with one step cpvc solvent cement and testing of joints complete as per direction of engineer-in-charge internal work-exposed on wall. 20mm nominal outer dia pipes. (dar no-18.7.2) 2 providing and fixing chlorinate polyvinyl chloride (cpvc) pipes, having thermal stability for hot & cold water supply, including all cpvc plain & brass threaded fittings, including fixing the pipe with clamps at 1.00 m spacing.this includes jointing of pipes & fittings with one step cpvc solvent cement and testing of joints complete as per direction of engineer-in-charge internal work-exposed on wall. 25mm nominal outer dia pipes (dar no-18.7.3) 3 providing and fixing chlorinate polyvinyl chloride (cpvc) pipes, having thermal stability for hot & cold water supply, including all cpvc plain & brass threaded fittings, including fixing the pipe with clamps at 1.00 m spacing.this includes jointing of pipes & fittings with one step cpvc solvent cement and testing of joints complete as per direction of engineer-in-charge internal work-exposed on wall. 50mm nominal dia pipes. d.s.r no- 18.7.6 4 providing and fixing chlorinated polyvinyl chloride (cpvc) pipes, having thermal stability for hot & cold water supply including all cpvc plain & brass threaded fittings this includes jointing of pipes & fittings with one step cpvc solvent cement, trenching, refilling & testing of joints complete as per direction of engineer in charge. 100 mm nominal dia pipes. d.s.r no- 18.9.9