Seamless 1/2"--24"

one welding seam 26"--96"

ASME B16.9, ASME B16.49, PFI-standard_ES-24.

A234/A234MGr. WPB-WPC A105

A234/A234MGr. WP 1-WP 12-WP 11-WP 22-WP 5-WP 91-WP 911

ASTM/ASME A420 WPL 3-WPL 6

ASTM/ASME A860 WPHY 42-46-52-60-65-70