What is Nominal size and actual size?
What is Nominal size and actual size?
A, nominal size: the standard size specified in the standard, the user and the manufacturer want to get the ideal size, but also the contract specified in the order size.
B, the actual size: the actual size of the production process, the size is often greater than or less than the nominal size. This phenomenon is greater or less than the nominal size of the phenomenon known as the deviation