STEEL PIPE NIPPLES & MERCHANT COUPLING

AMERICAN STANDARD-ANSI/ASTM A733
PIPE:ASTM A53
THREADS:ANSI B1.20.1
BRITISH STANDARD-BS1387
PIPE:BS1387
THREAD:ISO7/1
DIN STANDARD- DIN2982
PIPE:DIN2440
THREADS:DIN2999

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