STEEL PIPE NIPPLES

AMERICAN STANDARD : ANSI/ASTM A733
PIPE: ASTM A53
THREADS: ANSI B1.20.1

BRITISH STANDARD : BS 1387
PIPE: BS 1387
THREADS: ISO 7/1

DIN STANDARD : DIN2982
PIPE: DIN 2440
THREADS: DIN 2999