seamless steel pipes 1)Outer diameter :33.4-609.6mm(1-24") 2)Wall thickness:2.77-20.62mm 3)Steel grade:A.B Length : seamless steel pipeOD:33.4-609.6mmWT:2.77-20.62mmSteel Grade;A25,A25P,A,B,X42,X46,X52,X56,X60,X65,X70Length :5.8m-18m longProductive Capacity :400,000 ton per yearMain Market : North America South America Eastern Europe Southeast Asia Africa Oceania Mid east Eastern Asia Weastern ...