Jiashan Dingsheng Electric Co., Ltd. is Located at Jiashan, which is at the north end of the first cross-sea bridge in the world and combination of Jiangsu,Zhejiang and Shanghai. This area develops fastest in the east of China and has most convenient transportation (It is 80 km far from Shanghai,110 km from Hangzhou and 100 km from Suzhou). Sheng feng has been devoted to develop, design and produces: switches, socket, Power strips, Push to open (push to exit),USB charger etc for electrical ...