Itsinda rya Tianjin Rainbow SteelYashinzwe mu 2000, Iherereye mu Mujyi wa Tianjin. Hamwe n'iterambere ry'imyaka 20 ishize, Rainbow Steel yabaye ikigo cy’ibyuma n’ibyuma gihuza imiyoboro y’icyuma gikozwe mu byuma bivanze, inguni y’icyuma gikozwe mu byuma bivanze, imiyoboro y’icyuma gikozwe mu byuma bivanze, inyubako z’ibyuma bivanze, inyubako z’ibyuma bivanze mu bwubatsi, inganda z’ubwubatsi, ubuhinzi n’ingufu nshya. Turi kandi ikigo kinini gikora iminara y’icyuma gikwirakwiza amashanyarazi mu majyaruguru y’Ubushinwa. Itsinda rya Rainbow Steel rifite amashami menshi arimo imiyoboro itunganya ibyuma, gukata ibyuma, gusudira no gusiga kashe, uruganda rutunganya ibyuma bivanze n’ububiko bunini. Itsinda ryacu rifite ikoranabuhanga mu nganda, ubunararibonye mu gutunganya, ubushobozi mu by’ubuhanga n’ibikoresho bigezweho. Abantu bacu ni abanyabwenge kandi bakora cyane. Ibicuruzwa byacu by’ingenzi byohereza mu mahanga ni imiyoboro y’icyuma ivanze, imirimo yo gukora inyubako z’ibyuma cyangwa imirimo yo gutunganya inkingi, inguni y’icyuma ivanze, inguni irambuye, imiyoboro y’ibyuma n’imigozi, imiyoboro y’ibyuma n’indi mirimo yose y’ibyuma izakenera gutunganywa kurushaho. Hamwe n’iterambere riri ku isi, Rainbow steel yiyemeje guteza imbere ikoranabuhanga rishya na serivisi nziza kugira ngo ihuze n’ingufu zikomoka ku mirasire y’izuba. Itsinda ryacu rifite uburambe bw’imyaka irenga 10 kandi rikora neza mu bucuruzi bwo gushyiramo ingufu z’izuba (imiyoboro y’izuba). Ibicuruzwa byacu byabonye icyemezo cya TUV, CE, ISO 9001-2008 n'ibindi. Amaduka yo gukata, gusudira no gusiga kashe ya laser arahari ku bicuruzwa bisanzwe kandi byihariye.