seamless steel pipe astm a 106 1. Factory sell 2. OD: 10-630mm 3. ASTM ... Seamless Tube Manufacturing Co.,LtdNameseamless steel pipe astm a 106 Brand nameXinglong (ourself)StandardAPI 5CT ,API 5L,ASTM A53 ... ,DIN 17175,GB/T8162-2008,EN10204,EN10216-1,EN10216-2,EN10219-1,GB/T8162-2008,GB/T8163-2008,GB3087- ... ,DIN 17175,GB/T8162-2008,EN10204,EN10216-1,EN10216-2,EN10219-1,GB/T8162-2008,GB/T8163-2008,GB3087- ...