Steel Round Square Pipe High Frequency Welded Tube Production...
API&ERW 325 114.0 - 325.0 mm 90x90mm - 250x250 mm 80x100- 200x300 mm 4.0 - 12.5 mm 5.0 - 12.0 meters Max 40 m/min Solid State High Frequency Welding 1000kw API&ERW 508 165.0 - 508.0 mm 130x130 - 400x400 mm 120x140 - 350x450 mm 6.0- 12.7 m...