Any one no of a good source of info on the above I like to find some reading material explaning the differences ect and how they are calculated web based or book would suit
On Mar 29, 8:41 pm, Andrew Bishop <and...@andrewbishop66.plus.com> wrote:
> Any one no of a good source of info on the above > I like to find some reading material explaning the differences ect and > how they are calculated web based or book would suit > > Thanks Andrew
There is comprehensive info. on this in Machinerys Handbook.