Taiwan Provincial Standard of the People's Republic of China
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CNS 3157-1981
Scope
This standard is suitable for testing the accuracy of single-acting crank presses, eccentric presses, crankless presses and single-acting toggle presses (hereinafter referred to as punch presses).
CNS 3157-1981 history
1981CNS 3157-1981 Accuracy Test Standard for Crank Press