Ultrasonic lap seam welding technology Ultrasonic lap seam welding,co-extrusion forming; Low waster ratio and easy to operation; Welder,inverter,temperature control instruments and PLC control compont are famous products in the world; Controlling center adopting computer controller PC,which long-distance closed loop control automatically the process of speed of extruding and hauling,temperature and product diameter Butt-joint argon-arc welding technology: Advanced technology Butt-joint argon-arc welding,welding seam close-grained,smooth and its quality comply with American standard,having good appearance,double gun transforming w High grade devices arrangement Longitudinal welding machine,spraying printer,inverter,temperature control instrument ,computer control system are all famous products in the world. eld ,layered extruding,eassy to replace the die,high finish product ratio. High automation degree Controlling center adopting computer control system of Austria B&R company' programmable computer control PC,which long-distance closed loop control automatically the process of speed of extruding and hauling,temperature and product diameter.