Tianjin Rainbow Steel Group e hiwere na 2000, nke dị na Tianjin City.Egwurugwu Steel bụ igwe eji arụ ọrụ na igwe anaghị agba nchara nke igwe nchara galvanized, ogwe nku igwe galvanized, profaịlụ galvanized, ihe owuwu galvanized maka ihe owuwu akụrụngwa, ụlọ ọrụ ụlọ, Agriculture na mpaghara New Energy.Ngwaahịa anyị enwetala akwụkwọ TUV, CE, ISO 9001-2008.Laser ịkpụ, ịgbado ọkụ na stamping ogbako dị maka nkịtị na ahaziri ngwaahịa.