alloy seamless steel pipe ASTM A106 Grade A/B, A53 Gr A& B, St37, 10#, 20#, 45#, etc. Other standard and grade is also availal alloy seamless steel pipeASTM A106 Grade A/B, A53 Gr A& B, St37, 10#, 20#, 45#, etc. Other standard and grade is also availalbe as per Packing: Bundles, seaworthy wooden casesWith or without end caps, varnish or as per clients requirements.