This standard specifies the appearance and main dimensions of the K-type series electric light source glass bulb. This standard is applicable to K-type series electric light source glass bulbs.
QB/T 2049.5-1994 history
2013QB/T 2049.5-2013 Glass bulb dimensions for lamps.K series shapes
1995QB/T 2049.5-1994 Glass envelope of electric light source Dimension of K model glass envelope