A novel metallic squeeze-out tube suitable for packing paste-like foods whose flavor is regarded as important or the like is described herein, in which a resin powder layer is formed on its inner surface and on the outer surface of its neck portion by electrostatic painting and thereafter it is finished...http://www.google.es/patents/US4271208?utm_source=gb-gplus-sharePatente US4271208 - Method for coating a metallic squeeze-out tube