The text you are referring to is the official German standard .
The official publisher of DIN standards is (now part of VDE Verlag). You can visit their website and search for "DIN 2303". Even for withdrawn standards, they often retain historical copies for a fee. din 2303 pdf
You apply DIN 2303 when:
High static or dynamic stress and high safety significance. The text you are referring to is the
: The article highlights laser welding as a key "innovative joining process" for defense products due to its precise energy input and high process stability. din 2303 pdf