rubber compound as per bs 2752, c-70(cr),rubber compound as per bs 2752, c-80 (cr),rubber compound as per bs 2751, ba 70 (nbr),rubber compound as per bs 2751, ba-80(nbr),rubber compound as per is 7450, grade 4 (sbr),rubber compound as per is 7450, grade 5 (sbr)
