ASTM A 335 P11 Seamless Ferritic Alloy Steel PipesWe are leading manufacturer and stockist of ASTM A 335 P11 Seamless Ferritic Alloy Steel Pipesin China.ASTM A 335 P11 Seamless Ferritic Alloy Steel Pipes Specifications: ASTM A 335 P11 Seamless Ferritic Alloy Steel Pipes Size: OD: 6-219mm WT: 1-35 mm.ASTM A 335 P11 Seamless Ferritic Alloy Steel Pipes Cold-rolled sheet: Thickness: 2-5mm ASTM A 335 ...