whole unpeeled tomatoes of the Roma or similar varieties or of the round varieties, having undergone a heat treatment, packed in hermetically sealed containers, lightly brined (natural preparation) or in tomato purée (tomato purée or juice preparation), where not less than 65 % of the weight of the drained tomatoes consists of whole tomatoes not showing any damage which substantially alters their appearance, and covered by CN code ex 2002 10 90