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Diameter 3.0 - 500mm 2507 1.4410 Duplex Stainless Steel Industrial Pipe Standards ASTM/ASME:A240 - UNS S32750 EURONORM:1.4410 - X2 Cr Ni MoN 25.7.4 AFNOR:Z3 CN 25.06 Az DIN/EN 1.4410,ASME SA-240 ...