Since 1949, ARO Welding Technologies SAS has been a leader in resistance welding technology providing the automotive and manufacturing industries with innovative robotic welding, manual welding and stationary welding systems. From spot welding and projection welding, to seam or butt welding, we provide the optimum solution. ARO is headquartered in Chateau-du-Loir, near Le Mans in France, with regional offices in Europe, the Americas and the Far East as well as independent sales and services partners. ARO is a division of the multi-disciplined UK engineering group, Langley Holdings plc.