Yes, Fonnov manufactured the large-diameter aluminum seamless tubes and pipes for the extreme pressures that come with the applications – pressure vessels, LNG vessels, hydrogen storage in vehicles, etc. The aluminum alloys we use for the extrusions have the required combination of chemical, physical, and mechanical properties. Our quality control team is always keen to ensure that the dimensions, composition, and machenical characteristics of the extrusions are as designed. Ultimately, we have large-diameter aluminum seamless tubing that is reliable in high-pressure applications.