... ,BS ,ISO ,GB, SH, AND, SH ,etcmaterialCarbon Steel :ASTM A106/ A53 ASTM A 179 Gr.A/B, API5L Grade X42/X46 ... mRandom length and Fixed range lengthPort processing2 "the following do plain End ,2 "above do beveled EndSurface treadmentBlack painting , Anti-rust ... 450C) etcSteel gradeQ195,Q195L,Q235 and so on PackingPlastic steel pipe cap ,plastic bag, steel strip bundledCertificateAPI, CCS, ISO9001: ...