Friction stir spot welding - Aluminium - Part 4: Specification and qualification of welding procedures (ISO 18785-4:2018); German version EN ISO 18785-4:2021— 24 стр.
Friction stir spot welding - Aluminium - Part 4: Specification and qualification of welding procedures (ISO 18785-4:2018); German and English version prEN ISO 18785-4:2020