Application is Structure Pipe Detailed Product DescriptionASTM A106/A53 Gr.B carbon steel pipe 1. OD 10.3-610mm WT:1-70mm ... :5-12meters 3. API & ISO certificated ASTM A106/A53 Gr.B carbon steel pipe 1. OD 10.3-610mm WT:1-70mm ... East, America, Europe,etc. We supply ASTM A106/A53 Gr.B carbon steel pipe,seamless pipes, welded pipes, galvanized pipes, special shaped ...