| Mea e fa'apipi'i ai le lagolago mamafa/mea e fa'apipi'i ai le lagolago u'amea | | Umi Maualalo (m) | Umi Maualuga (m) | Paipa i totonu (mm) | Paipa i Fafo (mm) | Mafiafia o le Puipui (mm) | | 1.8 | 3.2 | 48 | 60 | 1.4-4.0 | | 2.1 | 3.4 | 48 | 60 | 1.4-4.0 | | 2.2 | 4.0 | 48 | 60 | 1.4-4.0 | | 2.4 | 3.9 | 48 | 60 | 1.4-4.0 | | 3.5 | 4.0 | 48 | 60 | 1.4-4.0 | | 3.0 | 5.0 | 48 | 60 | 1.4-4.0 | | |
| Mea e fa'apipi'i ai le u'amea/mea e mafai ona fetu'una'i le tiute mama | | Umi Maualalo (m) | Umi Maualuga (m) | Paipa i totonu (mm) | Paipa i Fafo (mm) | Mafiafia o le Puipui (mm) | | 1.6 | 3.0 | 40 | 48 | 1.4-2.5 | | 48 | 56 | 1.4-2.5 | | 1.8 | 3.5 | 40 | 48 | 1.4-2.5 | | 48 | 56 | 1.4-2.5 | | 2.0 | 3.5 | 40 | 48 | 1.4-2.5 | | 48 | 56 | 1.4-2.5 | | 2.2 | 4.0 | 40 | 48 | 1.4-2.5 | | 48 | 56 | 1.4-2.5 | | |
Na faavaeina le Tianjin Rainbow Steel Group i le 2000, ma o loʻo i le Aai o Tianjin. O le Rainbow Steel o se pisinisi uʻamea ma uʻamea tuʻufaʻatasi o paipa uʻamea apamemea, uʻamea apamemea tulimanu, faʻailoga apamemea, fausaga uʻamea apamemea mo le Fausiaina o Atinaʻe, Alamanuia Fale, Faʻatoʻaga ma le Malosiaga Fou. Ua maua e a matou oloa le tusi faamaonia o le TUV, CE, ISO9001-2008. O loʻo avanoa fale faigaluega e tipi ai, faʻapipiʻi ma faʻailoga ai leisa mo oloa masani ma oloa faʻapitoa.
