... German production lines Tube Body Diameter: 19-35mmTube Body Length: from 115 mm to 137 mm,Material: by Aluminium 99.7,Process ... , with membrane or open, based on the customer's requirements,Tube Shoulder: unworked and flat, brushed, polished, ringed or lacquered,Internal ... , also developped according to the customer's requirements, High quality aluminium tube for printing