... .main datamain standardGB,AISI, DIN, API , JISproductsbar,plate&sheet,seamless tube,welded pipe,wire)oil pipeAPI 5L X52,X60,X65,X70 ... -temp steelA333 GR.6,Gr.3,A671 CC60,A516 Gr.60,A516 Gr.70carbon steel pipeASTM A106A,A106B,A106C,A53 Gr.A,A53 Gr.B,st37,st45 ...