Shanghai Yihai Chong New Energy Technology Co., Ltd., located in Jinhai Road 6055 Lingang South Bridge Science  and Technology City, Fengxian, Shanghai. Our company has been  focusing on the research, development, upgrading of ship energy saving  power products for many years, mainly for the development of ship energy  power system integrated products, and committed to using high technology  to retrofit and upgrade traditional ship energy power systems and create domestic  first-class ship energy saving power brand. Our comp···