... products: speakers, MP4 players, PDAs, mobile hard disks, learning machines, printers, fax machines, ... DVD players, air conditioners, cleaners, etc. 4) Instruments: meter controllers, display meters, ... CNC hand-board models, simulation toys, gypsum boards, plastic boards, alloy boards, electronic gifts, mobile samples, coffee machine ... customer service and state-of-the-art processing control techniques. ...