Synthetic rubber and factice derived from oils, in primary forms or in plates, sheets or strip (excluding latex, styrene-butadiene rubber ‘sbr’, carboxylated styrene-butadiene rubber ‘xsbr’, butadiene rubber ‘br’, isobutylene isoprene rubber ‘iir’, halo-isobutene-isoprene rubber ‘ciir’ or ‘biir’, chloroprene rubber ‘cr’, acrylonitrile-butadiene rubber ‘nbr’, isoprene rubber ‘ir’ and non-conjugated ethylene-propylene diene rubber ‘epdm’)