Rajapakse, R.A.Gunasena, W.A.S.Joganathan, B.2013-05-082013-05-081976Journal of the Rubber Research Institute of Sri Lanka53pp.17-21https://dl-rri.nsf.gov.lk/handle/1/1524Chemical TechnologyNatural rubberCompoundingPitch oilMechanical propertiesVulcanizingUse of pitch oil in natural rubber compoundingA