This standard specifies the general tolerances for sheet metal shears up to 12 mm thick. This standard is applicable to the equipment structure of electrical equipment that is cut by a shearing machine and the sheared parts directly obtained. You can also refer to the cutting and processing of plates, strips, strips and profiles processed by other methods.
JB/T 6753.2-1993 history
1993JB/T 6753.2-1993 Tolerance of component parts of electrical equipments General tolerance of metal shear parts