Beschreibung
    
Configuration of ends of standard springs:
Wire up to and including 0.8 mm is closed, but unground 
Wire from 1.0 mm is closed and ground 
d = Wire diameter in mm 
De = External diameter (D+d) 
D = Mean diameter in mm (De minus d) 
Di = Internal diameter in mm (De minus 2xd) 
n = Number of effective elastic coils 
nt = Coils total (n+2) 
Lo = Free unloaded length. 
Lo is for guidance only. Lo can vary sli