Mr. Chu mentioned that actually before the ISO9002 accreditation, Chan Chin has introduced the system. Therefore, the accreditation is not for receiving more orders but for catching up with international quality standards. In addition, the introduction of ISO system makes management easier, in that, no documented management sometimes caused manufacturing process ambiguous, for example, drilling screws could become pointed tip screws. However, after ISO system is implemented, such situation has not happened. Moreover, Mr. Chu draws pictures for each product and signifies labels in order to reduce errors during manufacturing process.