The work begins with the aluminium disk (99.70% pure)
The disk is prepared for lubrication
The disk is subjected to cold extrusion for deforming as required according to ordered length and diameter
Then come the stages of trimming and the threading required for fitting the cap
Immediately afterwards, 400°C furnace treatment for malleability
A layer of insulating coat is added to separate the product from the metal
The graphic design for the tube is applied during this stage
The tube is completed and the cap and the mastic ring (to provide a hermetic seal when the product is closed) are added
