Spring steel EN 10132 - 1/4 (DIN 17222)
DIN 472 heavy duty
Ø from 14x1,20 to 35x1,60 mm: strip C60S (C60)
Ø 34x1,75 and from 35x1,75 to 110x5 mm: wire C75S (C75)
DIN 472 light duty
Ø 351x,20 mm: strip C60S (C60)
Ø from 40x1,70 to 150x3 mm: wire C75S (C75)