Ductile iron Backing Rings
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                    Ductile Iron Backing Rings, Epoxy paint coated
                    ANSI CL150 Backing Rrings
                    Material:  Ductile Iron ASTM A536 Gr 65-45-12
                    SizeSDR7  1”~12
                         SDR11  2"~24"
                    Coated : Antirust Paint, Epoxy Paint,Fustion bound epoxy paint, hot dip galvanized, PP covered
                     
                     
                    DIN/ EN Backing Rings
                    Material: Ductile Iron GGG40
                    Size:DN63~180  PN10/16
                       DN200~315  PN10
                    Coated : Antirust Paint, Epoxy Paint,Fustion bound epoxy paint, hot dip galvanized, PP covered

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