supply and delivery at site isi mark socket and spigot jointing system centrifugally cast di (k7/k9) pipes refer to tender documents , supply and delivery at site isi mark socket and spigot jointing system centrifugally cast di (k9/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 polyethelene sleeves for water supply projects , 300mm dia d. i pipe (k7) , 250mm dia d. i pipe (k7) , 200mm dia d. i pipe (k7) , 150mm dia d. i pipe (k7) , 100mm dia d. i pipe (k7)