This standard applies to the quality classification of KL3 type thumbwheel switches. This standard only gives key performance indicators and is not a complete standard. It must be used together with GB 9536 and its corresponding sub-specifications and blank detailed specifications, SJ 1752 and SJ 1754.
SJ/T 9561.12-1993 history
1993SJ/T 9561.12-1993 KL3 thumbwheel switch--Quality grading standard