1 thick wall seamless steel pipe 2 material 10#,20#,16Mn,A53B,A106B,A53A,P11,P12 3 size: 325mm-1000mm*25mm-150mm thick wall seamless steel pipe,hot rolled process.10#,20#,16Mn,A53B,A106B,A53A,A106A,ST37,ST42,ST45,ST52 size: 325mm-1000mm*25mm-150mmplease inform me if you are interested in these size,we can delivery you immediately material: 20# ODthicknesslengthpcsmmmmmeter/pcpcs3101004.251325405. ...