High Frequency Welded Carbon Steel Pipes Making Machine ERW Tube Mill Line Manufacturing 45-114mm Pipe Diameter High Rigidity Diameter Max 208mm | Thickness Max 8mm Product Specifications Attribute Value Product Name High Frequency Welded Pipe Mill Diameter Max 208mm Thickness Max 8mm Tensile Strength σb≤500 Mpa Thickness Range 1.5-8mm Max Production Speed 20~60m/min Fixed Cutting Length 6-12m Pipe Size Range φ76-φ203mm Warranty One Year Welding Type High Frequency Welding