 የእያንዳንዱ ድብደባ የሽምግሙ የፊት ጠርዝ ርዝመቱ እስከ ትከሻው ርዝመት እና የሞተ ርዝመት ትከሻ.
The wear of each die must be checked by measuring the length of the front to the shoulder of the punch and the length of the die shoulder.