GOST 12821-80 Welding Neck Flange
Stanadard: GOST 12821-80
Pressure: PN6, PN10,PN16,PN25,PN40,PN63
Size: DN10-DN1600
Type: Welding Neck
Material: CS CT20, 16Mn, SS304/304L/316/316L/Duplex SS
Coating: Rust-Proof Oil; Black/Yellow paint; Galvanized; Epoxy Coating