alvilee
Automotive
- Jul 15, 2009
- 2
hello everyone
I would like to know if there are some tensile resistance specification to cold coiling spring raw material; i mean, must be the hardness high or low? in order to reach a final hardness betwene 48 - 52HRC
thanks a lot
I would like to know if there are some tensile resistance specification to cold coiling spring raw material; i mean, must be the hardness high or low? in order to reach a final hardness betwene 48 - 52HRC
thanks a lot