DIN Check Valve

DIN Check Valve main component material:
Fuselage: EN-GJL-250
Valve cover: EN-GJL-250
Stem: 2Cr13/ss304/ss316/carbon steel
Stem Nuts: Brass
Disc: EN-GJL-250
Seats: Bronze, brass
Hanger: EN-GJS-5007
Hanger Pins: Stainless steel
COVER GASKET: Graphite