Nnọọ na Tianjin Rainbow Steel.Anyị na-arụpụta ngwaahịa nchara ma ọ bụ nchara nchara maka ihe eji arụ ọrụ nke anyanwụ, nnyefe & nkesa nchara (ụlọ elu & okporo osisi) , mwube, ụlọ ọrụ mmepụta ihe, Scaffolding na griin haus Construction.Tianjin Rainbow Steel Group e hiwere na 2000, Dị na Tianjin City.Mgbe ọtụtụ afọ nke mmepe gachara, egwurugwu Steel etolitela n'ime ihe intergrated ígwè na ígwè ụlọ ọrụ nke galvanized ígwè ọkpọkọ, galvanized ígwè n'akuku mmanya, galvanized profaịlụ, ígwè owuwu, na anyị bụkwa ndị kasị ibu eletriki nnyefe ígwè ụlọ elu na osisi factory na china.anyị otu nwere nke anyị galvanizing igwe nri, Ya mere, ọrụ niile nwere ike galvanized si anyị onwe anyị factory.Chọpụta oke ngwaahịa igwe anyị gụnyere ọkpọkọ igwe, Angle Iron, Beams Iron, Products Steel Perforated, Structures Steel Welded, Steel Tower&Pole, Ọrụ na-atọ ụtọ, nka ụlọ ọrụ sara mbara yana onyinye ọrụ dị elu.