... of spiral weled steel pipes, we can supply u high quality goods with best price. 1.Out Diameter ... Grade: Q235A, Q235B, Q345API 5L: GR A, GR B, X42,X46, X56, X60,X65,X70, X80ASTM A252 GR ... , GR 2, GR 3ASTM A53: GR A, GR B, GR C, GR DBS 4360: Grade 43, Grade 50EN ... , and oil; construction and piling Cangzhou Manier Import-Export Trading CO., LTD is a professional manufacturer & exporter of LSAW steel pipe ...