Ductile iron grooved pipe fittings, used for fire protection, irrigation, water & waste water etc. (1)Standard: ansi, din, bs (2)Material: astm a536 65-45-12 (3)Techonology: casting (4)Size: 1/2"-12" (5)Pressure: 300psi, 500psi (6)Reatment: red painted, orange painted, galvanized, red spraied, orange spraied, dacromet, epoxy powder, epoxy, electroplate, galvanized+epoxy, etc. (7) rubber rings: silicon rubber/nbr/epdm Carton box