Alessandra De Santis
German Knives Law - Weapons Act („Waffengesetz“ WaffG)
Weapons Act of 11 October 2002 (Federal Law Gazette I, p. 3970, 4592; 2003 I p. 1957), most recently amended by Article 2 of the Act of 4 March 2013 (Federal Law Gazette I, p. 362)
Knives act 1997
The UK laws about buying and carrying a knife depend on the type of knife, your age and your circumstances.
For the Italian law a "weapon" is any tool that has been designed to injure the person or that, if used improperly, can cause damage to a person.
Without going into detail, because it is a complex subject that requires knowledge of chemistry and physical-chemistry, it is necessary to know that crystalline grains structure of the steel is closely related to the temperature at which the material is treated and with its cooling speed.
Commercial steels are never simple iron-carbon alloys, but often contain other elements, including:
Steel can be defined as an iron-carbon alloy with a carbon content less than 2.06%. In practice, however, other elements are always present in non-negligible quantities, so to constitute a complex alloy.