Folasaga o oloa
Fa'ama'a Fa'afale Fufulu mafolafolaTulaga masani : ASME B18.2.6, DIN6916 DIN7989Vasega: ASTM F436Laupapa: uliuli, HDG
Fa'asologa o oloa
DIN 6916 - 1989 Fufulu Ta'amilomilo mo Fa'amauina Fa'amaua'e Maualuluga