AUTO MFMW-II series, Automatic Two Welding Heads Station is able to synchronously weld on inside & outside of flanges. With welding positioner provide steady driving power by unlimited rotating, it can satisfy welding requirements of multi-layers and multi-seams. Speed stepless regulating device can effectively control welding speed. It has the advantages of easy structure, high fitting adaptability, high welding efficiency and quality, and is key equipment in shipbuilding pipe welding.