31 ELECTRONICS

#	Name
31.020	Electronic components in general
31.040	Resistors
31.060	Capacitors
31.080	Semiconductor devices
31.100	Electronic tubes
31.120	Electronic display devices
31.140	Piezoelectric and dieelectric devices
31.160	Electric filters
31.180	Printed circuits and boards
31.190	Electronic component assemblies
31.200	Integrated circuits. Microelectronics
31.220	Electromechanical components for eletronic and telecommunications equipment
31.240	Mechanical structures for electronic equipment
31.260	Optoelectronics. Laser equipment