Established in 1997, Yueqing Changjiang Semiconductor Factory (Hence Electric Co., Ltd) is a professional manufacturer concerned with design, development and production of solid state relays, thyristors, rectifier diodes, bridge rectifiers, heat sinks, power modules, and switches, etc. It is located in Liushi, Yueqing, Zhejiang Province, near Wenzhou airport, with convenient transportation access. All the products from our factory strictly follow international quality standards and win great ...