ductile iron pipe fittings 1.best quality 2.best servive 3.best price ductile iron pipe fittings Quick DetailsMaterial:Carbon SteelTechnics:ForgedType:ElbowPlace of Origin:Hebei ... 48"DN15-DN12002)STANDARD:ASME,JIS,DIN,GB pipe fitting Elbow1)Carbon steel fitting and alloy steel fitting2)Standard: ASME, ANSI, ... treatment: Transparent oil, rust-proof oil, hot galvanizing ductile iron pipe fittings