Established in december 1995 and situated within tongxiang economic&technical developing zone zhejiang, chian, is a special electron making enterprise. The company own estate of rmb 5,000,000 with capital of rmb 1,137,500, occupying 3800 square meters. And acquire the nation measure making license. During the next year, the another production of no guard substation alarm system developed by them was listed in new items of the province. Name of new connection-creation enterprise is enlisted to them in 1999 and advanced science&technology collective in 2000 by the people government of tongxiang. By the system-reform, it was reestablished and came into being the joint-stock venture in 2001, which has conforms to ISO 9001:2000 standards.