Ua hoʻokumu ʻia ʻo Tianjin Rainbow Steel ma 2000, aia ma ke kūlanakauhale ʻo Tianjin a kokoke i ke awa ʻo Tianjin. Ma hope o kekahi mau makahiki o ka hoʻomohala ʻana, ua hoʻomohala ʻo Rainbow Steel i kahi ʻoihana kila i hoʻohui ʻia e hāʻawi ana i nā huahana kila e like me ka Sun mounting Steel Structure, ka hana kila kila, scaffolding a me ka formwork a me nā mea pili. Loaʻa iā mākou kā mākou wili galvanizing no laila hiki ke hoʻopau ʻia nā hana pani zinc a pau i kā mākou hale hana ponoʻī.

Ua loaʻa i kā mākou hale hana ka palapala ISO 9001 a me ka ʻike ʻoihana nui a me ka lawelawe kiʻekiʻe. E ʻoluʻolu ʻoe e ʻike i kā mākou huahana metala nui, ke kakali nei mākou i kā mākou hui ʻana i ka wā e hiki mai ana