MANUFACTURING METHOD OF COMPOUND TUBE

摘要

A side seamless composite type collapsible tube having a tubular nipple section, a shoulder section and a tubular barrel section for receiving an extractable content is provided. The tube sections are formed of a continuous wall of metallic material having a wall thickness from about 20 to 70 mu with at least a portion of the tubular barrel section coated with a synthetic resinous layer of from about 50 to 500 mu thick. A method of forming the tube from a metallic blank material is also provided.