E12 lamp holder gauge; E12 lamp through regulation; E12 lamp holder only regulation; E12 additional pass regulations; E12 contact performance regulations

E12 lamp holder gauge standard : GB 1483.1-2008; IEC 60061-3: 2004
Quality testing applies to E12 screw caps in the electric light bulb. Its structure and related waveform ( such as waveform thread ) by calculating and optimizing the computer, and then through computer processing machine, to achieve a high degree of precision and aesthetics its material with anti- rust ability of high carbide manufacturing .

E12 lamp holder gauge classified by function :
Through regulation : E12 (7006-27H-1)
Regulation ended : E27 (7006-28C-1)
Additional through regulation : E12 (7006-27J-1)
Contacting performance specifications : E12 (7006-32-1)