ZY76 tube line Round tube OD: 30-89mm Square tube: min 25x25mm, max 70x70mm Rectangle tube: min 20x30mm, max 100x40mm thickness for round tube: 1.2-4.0mm thickness for square & rectangle tube: 1.2-3.5mm Raw material: hot rolled/cold rolled carbon steel, galvanized steel Coil width: 90-280mm Coil OD: 1000-1800mm Coil ID: 508mm Coil weight: max 3000kg Tube length: 4-12m Speed: 0-70m/min Welding method: high frequency induction welding Type of welder: solid state 300kw Main motor: 13