... additional requirements. 1.Commodity Nameseamless stainless steel pipe astm a312 tp316/316l2.StandardASTM A106 ,ASTM A53 , ASTM A179, ASTM A210 ,ANSI B36.10, GB 3087 ... ,B), A106(B,C) Q235B,Q345B,16Mn, 10#.20#,45# Gr.B,X42,X46,X52,X56,X60,X65,X70, etc11.Usagefor ... at the most prompt timeBest regardsSophia wang seamless stainless steel pipe astm a312 tp316/316l