This standard specifies the general forging module blank size series, weight measurement method and weight tolerance. This standard is applicable to general forging module blanks such as hammer forging, machine forging, die casting, molded plastics, etc., and is the weight basis for delivery by both parties.
JB/T 5900-1991 history
2017JB/T 13356-2017 Forging Die Forging Module Dimensions and Weight Calculation Methods
1991JB/T 5900-1991 General forging module blank size and weighing method
JB/T 5900-1991 General forging module blank size and weighing method was changed to JB/T 13356-2017 Forging Die Forging Module Dimensions and Weight Calculation Methods.