... :ANSI;BS;DIN;ISO ProductFlange ,Steel flange,Carbon steel,carbon steel reducing pipe flangeSize15mm~600mmMaterialCarbon steel(20#,35#,45# etc ... case;wooden palletOthersCould do as customer's design and samples by different materialsCould be combined with other ... connection.Manufacturing standard: GB, American Standard, Russian Standard, JIS and so on.Nominal pressure: sch5s, sch10s, sch20s, sch30s, ...