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ASTM B472 UNS N08020 ASTM B473 UNS N08020 DIN 2.4660 Alloy 20 Round Steel Bar 1. Nickel Alloy 20 Bar Alloy 20 Round Bars Exporter, Carpenter 20 Hexagonal Bars, UNS N08020 Alloy 20 Flat Bars, Alloy 20 ...