Tianjin Rainbow Steel Guluinakhazikitsidwa mu 2000, Ili mu Tianjin City.Ndi chitukuko cha zaka 20 zapitazi, Rainbow Zitsulo wakhala Integrated chitsulo ndi zitsulo ogwira ntchito chitoliro kanasonkhezereka zitsulo, kanasonkhezereka zitsulo ngodya, mbiri kanasonkhezereka, nyumba malata zitsulo Zomangamanga, Zomangamanga Makampani, Agriculture ndi New Energy dera.Ndifenso kampani yayikulu kwambiri yopanga zitsulo zamagetsi ku North of China.Gulu la Rainbow Steel lili ndi mabungwe angapo omwe akuphatikizapo mizere yopangira zitsulo, kudula zitsulo, kuwotcherera ndi kupondaponda malo ochitira misonkhano, mphero yopangira malata ndi nyumba yaikulu yosungiramo katundu. Gulu lathu lili ndi matekinoloje opangira zinthu, zochitika zogwirira ntchito, luso la uinjiniya ndi zida zapamwamba.Anthu athu ndi anzeru komanso olimbikira ntchito.Zogulitsa zathu zazikulu zomwe zimatumizidwa kunja ndi mapaipi achitsulo, ntchito zazitsulo kapena ntchito za chimango, mipiringidzo yachitsulo yamalango, bala lathyathyathya, ngalande zachitsulo ndi matabwa, mbiri yachitsulo ndi ntchito zina zonse zachitsulo zomwe zidzafunikanso kukonzanso. Rainbow steel yadzipereka kupanga matekinoloje atsopano komanso ntchito yabwino kwambiri kuti ikwaniritse zosowa zamphamvu zadzuwa.Gulu lathu lili ndi zaka zopitilira 10 komanso milandu yopambana pabizinesi yoyika solar (solar bracket).Zogulitsa zathu zapeza satifiketi ya TUV, CE, ISO 9001-2008 ndi zina zotero.Laser kudula, kuwotcherera ndi masitampu workshop zilipo zinthu wamba komanso makonda.