There are two main methods of producing coils: (1) The method to take up wire on bobbin. (2) The method to take up wire without bobbin, and to harden the wire by adhesive, etc. Each method has its merits and demerits and will be selected according to the purpose.
Shenzhen Office, where only eleven to twelve members were working four years ago, has now thirty-one workers of four Japanese, two Hong-Kongers, and twenty-five local workers, and has developed to be a private limited company.