suitable for printing such packing materials as polyethylene, polypro-pylene plastic bag, glass paper and roll paper, etc.And it description:YT6600/6800/61000Six-Colour Flexible Letter pressUse:This machine is suitable for printing such packing materials as polyethylene, polypro-pylene plastic bag, glass paper and roll paper, etc.And it is a kind of ideal printing equipment for producing paper ...