Carbon Steel Backing Rings
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                    Carbon Steel Backing Rings,Epoxy paint coated
                    ANSI CL150 Backing Rrings
                    Material:  Carbon Steel ASTM A36
                    SizeSDR7/11 1”~80
                                
                    DIN/ EN Backing Rings
                    Material: Carbon Steel S235
                    Size:DN25~3000  PN10/16
                    Coated : Antirust Paint, Epoxy Paint,Fustion bound epoxy paint, hot dip galvanized, PP covered

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