鈼廋ertificate:UL Listed / FM
鈼廠tandard:Approved ANSI / UL 213
鈼廐ousing:Ductile iron as ASTM A536, 65-45-12
鈼廈olt & nut:Carbon steel
鈼廏asket:EPDM
鈼廡emperature:鈮?107掳C
鈼廤. pressure:300 psi (2.07 MPa)
鈼廠urface:Red painting / hot dip galvanizedwholesale Grooved Coupling
website:http://www.baolaisteelpipes.com/fire-fittings/groove d-coupling/