yep, that is why I was sending mine made by this company to them, AMsafe are similar too
Pacific Scientific
Located in Maidenhead, UK and Kassel, Germany the facilities are staffed with experienced technicians fully trained on all aspects of repair and overhaul of aircraft Fire Extinguishers, Pressure Vessels, Oxygen Bottles, Crew Oxygen Masks and Crew Seat Restraints. Pacific Scientific holds the relevant approvals from the regulatory authorities in order to undertake this work.