
Malleable ironFlat bandedStandard Malleable Iron Fittings, FedSpecWW-P-521F, ANSI B-163 (Dimensions), ANSI B-21 (Pipe Threads), ASTM A-197 (Chemical & Physical Properties)
Malleable iron
Flat banded
Standard Malleable Iron Fittings, Fed
Spec
WW-P-521F, ANSI B-16
3 (Dimensions), ANSI B-2
1 (Pipe Threads), ASTM A-197 (Chemical & Physical Properties)