DIN EN 1592-1:1997-12 Aluminium and aluminium alloys - HF seam welded tubes - Part 1: Technical conditions for inspection and delivery; German version EN 1592-1:1997
1997DIN EN 1592-1:1997-12 Aluminium and aluminium alloys - HF seam welded tubes - Part 1: Technical conditions for inspection and delivery; German version EN 1592-1:1997
1997DIN EN 1592-1:1997 Aluminium and aluminium alloys - HF seam welded tubes - Part 1: Technical conditions for inspection and delivery; German version EN 1592-1:1997