... *600mm2.thickness:0.5mm-60mm4.Satndard: BS1387,EN10219,ASTM A53, ASTM A363.length:2~11.8m4. High Quality: ISO900 ... API5L, API5CL Product square steel pipesStandardGB/T3091-2001,BS1387,ASTM A53, ASTM A106, EN10219MaterialQ195,Q215,Q235,Q345, 20#, A53 A ... ’request2. Painting, caps, beveled edges, plain end,making, tread , or as customers’ requestsProcessing technologyThreading ,coupling and with plastic ...