Ko te raupapa DS DC mana hiko he wheako a Yingjie Electric i roto i te SCR DC mana hiko mo nga tau maha.Ma te pai o te mahi me te pumau pono, ka whakamahia nuitia i roto i te electrolysis, electroplating, metallurgy, maimoatanga mata, oumu hiko ahumahi, tipu karaihe, whakarewa anti-corrosion, utu me etahi atu ahumahi.mara.