DIN EN 14321-1:2005-09 Glass in building - Thermally toughened alkaline earth silicate safety glass - Part 1: Definition and description; German version EN 14321-1:2005
2005DIN EN 14321-1:2005-09 Glass in building - Thermally toughened alkaline earth silicate safety glass - Part 1: Definition and description; German version EN 14321-1:2005
2005DIN EN 14321-1:2005 Glass in building - Thermally toughened alkaline earth silicate safety glass - Part 1: Definition and description; German version EN 14321-1:2005