PVC longitudinal and transverse (expansion/contraction) joints are manufactured from specially formulated PVC Compound to resist broad spectrum of ozone, oxygen, alkalis and other aqueous born chemicals and to meet diverse nature of concrete lining for long term satisfactory performance when embedded in to concrete structure.ApplicationNCLTo be used in canal lining as contraction joint when concrete isin plastic condition.NCTTo be used in canal lining as expansion joint when concrete is inplastic condition.