Yes, Fonnov is very rigorous in its adherence to the quality control requirements for the manufacture of 6061-H112 aluminum seamless tubes and 6061-F aluminum seamless tubes for hydrogen fuel vehicles. We perform a series of measurements including dimensional measurements, mechanical properties inspections, macrostructure and microstructure tests. Our experienced team constantly checks whether the manufacturing process is adherent to local and international regulations and standards. By abiding by stringent quality control measures, we can deliver aluminum seamless tubes for hydrogen fuel vehicles that are durable, reliable, and safe.