Marterial can be: Carbon spring steel, 65Mn Steel, Sk5 steel, Chrome-vanadium
Hardness HRC 35-41.
The steel body stickness can be 1.4MM, 1.6MM, 1.8MM, 2.0MM
Other design can be maken according to optioned.
Package can be: Colorful box, skin, and double blister
With CE certificate