Seamlesss Steel Pipe Carbon seamless steel pipe OD:1/4“-48”（13.7mm~1216mm) Wall thickness:2.0mm-30.0mm Standard:API 5L ,ASTM A106,ASTM A53,GB/T8162,ASTM A192,ASTM A179,DIN1629 Tel:0086 731 88678504 Fax:0086 731 88678508 Email:judy@hn-shinestar.cn More related products,ERW Steel Pipe,LSAW Steel Pipe,SSAW Steel Pipe