electronic meters & automatic equipments- power/ electric/ kilowatt hour meters, power factor regulator, transducer, power factor control/manage system, power demand control system; automatic crane- type barrel/ rack plating equipments, automatic rotary-type rack plating equipment, P.C.B automatic plating equipment, automatic clamping barrel-type post-treatment equipment, automatic rotary-type rack plating equipments, rectifier for plating equipment, automatic feeders.