5810 - COMMUNICATIONS SECURITY EQUIPMENT AND COMPONENTS
5995 - CABLE CORD WIRE ASSEMBLY - COMM EQ
6120 - TRANSFORMERS: DISTRIBUTION AND POWER STATION
6210 - INDOOR AND OUTDOOR ELECTRIC LIGHTING FIXTURES
6240 - ELECTRIC LAMPS
6250 - BALLASTS, LAMPHOLDERS, AND STARTERS
J051 - MAINT-REP OF HAND TOOLS
J059 - MAINT-REP OF ELECT-ELCT EQ
J061 - MAINT-REP OF POWER DISTRIBUTION EQ
K061 - MODIFICATION OF EQUIPMENT- ELECTRIC WIRE AND POWER DISTRIBUTION EQUIPMENT