30 years of reform and opening up due to the scale effect of success, made a lot of contribution for the society, guangdong hardware industry in recent years the rapid development, formed the hardware tools, daily hardware, electrical and mechanical hardware, stainless steel hardware, abrasive, abrasive tools hardware is a complete industry categories, and form a large number of distinctive industrial base, such as zhongshan xiaolan locks, yangjiang tools, etc. Zhongshan xiaolan has formed by the locks of gas, as a leader, the upstream and downstream products and all kinds of accessories complete industry group. By the guangdong five jincheng, guangdong electrical and electronic five jincheng wait five jincheng constitute the activities of the trade center, accumulate potential together, produced strong scale effect, this for the rapid development of guangdong provides strong backing. Hardware industry experts ROM the fai think, hardware enterprise marketing and development should be considered in scale effect, for example,gun lock...