maintenance of rwss in pernem taluka- procurement of pvc fittings of various sizes. (retender) , supply of rigid pvc fittings conforming to is: 7834-1975 designed for precision and accuracy so as to join pvc pipes and other specials including railway freight, carting, loading and unloading and stacking etc. complete. elbow (6 kg/cm2); outer dia in mm , elbow (6 kg/cm2); outer dia in mm , 63 mm , 75 mm , 90 mm , 110 mm , 160 mm , coupler (plain) pn 6 (6 kg/cm2); dia in mm , 63 mm , 75 mm , 90 mm , 110 mm , 160 mm , tee - pn 6 (6 kg/cm2); dia in mm , 63 mm , 75 mm , 90 mm , 110 mm , 160 mm , supplying at store or site of work including railway freight, carting, loading and unloading, stacking, transit insurance etc., cast iron detachable joints conforming to is: 8794-1978 suitable for ac pressure pipes including cost of rubber rings, nuts, bolts etc. class 15.; nominal dia in mm , 80 mm , 100 mm , 150 mm , supply of pvc cement solvent suitable for jointing of pvc pipe , supplying at store or site of work of o rubber rings suitable for c.i.d. joints conforming to is: 5382/1985,sbr type etc. complete; sizes in mm. , 80 mm , 100 mm , 150 mm