Paipa U'amea Kaponi

O le paipa u'amea kaponi o se mea malosi e faia mai i le u'amea kaponi.
Paipa U'amea CHS Tulaga Masani: ASTM A53, API 5L, ASTM A252, ASTM A795, ISO65, DIN2440, BS1387. BS1139, EN10255, EN39, JIS3444, GB/T 3091 & GB/T13793
Paipa U'amea RHS SHS Tulaga Masani: ASTM A500, EN10219, EN10210, JIS3466, GB/T 6728
Fa'aoga: Paipa u'amea mo galuega faufale / mea fau fale, Fausaga u'amea, Paipa u'amea mo pou o pa,
Paipa fa'aputu, Paipa u'amea e puipuia ai le afi, Paipa u'amea fale koneteina, Vai maualalo le mamafa, vai, kesi, suau'u, paipa laina, Paipa fa'asūsū, Paipa u'amea lima