drilling machines, punching machines, routing machines, trimming machines, doweling machines, imaging machines, laminating machines, plating machines, etching machines, testing machines and inspection machines for manufacturing printed circuit boards

development and design services for others of printed circuit boards and electronic components for use with printed circuit boards, namely, capacitors, resistors, inductors, coils, diodes, transistors, integrated circuits, chip carriers, connectors, sockets, switches, crystals, relays, jumpers, thermistors, optoelectronics, modules, dual in line packages consisting of capacitors, resistors, diodes and transistors, and card-on-board assemblies