whole peaches or pieces of peaches, without peel, having undergone a heat treatment, packed in hermetically sealed containers with a covering liquid of sugar syrup or natural fruit juice and covered by CN codes ex 2008 70 61, ex 2008 70 69, ex 2008 70 71, ex 2008 70 79, ex 2008 70 92, ex 2008 70 94 and ex 2008 70 99