supply and delivery at site isi mark socket and spigot jointing system centrifugally cast di 100mm dia (k7) pipes conforming to is 8329-2000 (third revision) in standard length 4 m, 5 m, 5.5 m, 6 m for push-on joint (rubber gasket) with internal ce , supply and delivery at site isi mark socket and spigot jointing system centrifugally cast di (k7) pipes conforming to is 8329-2000 (third revision) in standard length 4 m, 5 m, 5.50 m, 6 m for push-on joint (rubber gasket) with internal cement mortar lining andexternal protection by metallic zinc coating with finish layerof epoxy/ bituminous coating of outside as per is: 8329-2000 specification with necessary jointing material rubber gasket (is: 5382:1985) including transportation, loading unloading and stacking at site including free supply of polyethylene sleeves. a) 100mm dia d.i. pipe (class-k7) , add gst @18% , add labour welfare cess @1%