Ka hangai e tatou nga hua o te kowhatu, te kowiri tira ranei mo te Hanganga Tihi Mutunga o te Hangarau, te Whakawhiwhinga me te Tohu Panui Peita (Towers & Nga pou), Te Hanga, Ahumoana, Te Tauhokohoko me te Hanganga Maatariki.

I hangaia te Tianjin Rainbow Steel Group i te 2000, Kei Tianjin City. Whai muri i te maha o nga whanaketanga, kua waihangahia e Rainbow Steel he putunga totoka me te miihini putiputi o te putorino putorino galvanized, pae kowiri tira galvani, he kowhiri kowhatu, he kowiri maitai, ko taatau ano hoki te miihini nui o te taura miihini nui me te whare miihini i china. Kei ta maatau roopu mahi miihini he mahi miihini, na reira ka taea te mahi mai i ta maatau wheketere.