... .2-1/2,3,4,5,6,7,8,9,10,11,12,14,16 4Thickness(mm):0.2-40mm 5Length ... ,China 7Material standard: A53/A106 GRA/B, Q195,Q215,Q235,10#,20#,45#,16Mn 8Application: Structure, gas and oil, petroleum, Hydraulic ... 9Package: by bulk or by container as your choice 10payment: T/T or L/C 11Certificate:API 5L, ISO,CE, BV, 12Standard ...