SPIRAL LOCKSEAM PERFORATED TUBES Newcan is capable of manufacturing spiral lockseam tubes that range in size according to Outside Diameters from 1 inch to 8 inches, and tube lengths of 2 inches to 120 inches. • Internal, External or Flush lockseams • Materials: Electrolytic Tin plate, Stainless Steel, Cold Rolled Steel, Aluminum and Galvanized Steel. • Varying perforation patterns for open area • Material thickness: Ranging from .008 inches to .040 inches. • Corrugated, if required Click on the photo for a larger view