Ningbo Donghuan Power Technology Co., Ltd. e hiwere na February 2011. Ụlọ ọrụ tumadi na-etolite, na-emepụta ma na-ere na-akwụ ụgwọ Stringing Block, Hoisting Tackle, Wire Grip, Reel Stand, Inspection Trolleys, Tightening Tools, Connector, Shackle, Lifter, Head bọọdụ Maka ndị na-eduzi, Mesh Sock Joints, Powered-winch, Press-igwe na ngwaọrụ ndị ọzọ na-ewu ụlọ na ụlọ ọrụ akụrụngwa maka owuwu ọkụ eletrik.Ụlọ ọrụ ahụ nwere ikike ibubata na mbupụ.Ụlọ ọrụ ahụ nwere ngwaahịa zuru oke na ngwaahịa zuru oke, nke dị mma maka ndị ahịa ịzụta otu nkwụsị.