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ASTM A335 Alloy Seamless Steel Pipe, 8.5 - 80 mm Thickness Specifications 1,Steel Pipe 2,ASTM A335-2006, ASTM A333-2005 3,13CrMo44, 12Cr1MoVG Description: 1.1.1 Specifications 1.Grade: 12Cr1MoV, ...