... ASTM National Certificate Galvanized steel pipeGalvanized steel pipe/tubeOur company is ... 300g/m2, 400g/m2.3. Material: Q195, Q215, Q235, Q345 ... package: packed in hexgon bundles or according to our customers' demand8 ... whether the defective pipe surfaceStandard spray: spray tube identification, production ... galvanized pipes, welded pipes, greenhouse pipes and other pipes. We can also process steel ...