Tube mill for carbon steel, GI steel and electronic steel dia: 7-16, 8-30,13- ... introduction KJ Series Straight Seam High Frequency Steel Welded pipe mill lines are used to manufacture ... 2.Applied raw material: Low carbon steel, low alloy steel, galvanized steel, stainless steel,etc 3.Some popular models and main ... Cutting→Tube run out & Collecting. Tube mill for carbon steel, GI steel and electronic steel