In STAMM, S.A. we have the following welding lines: Four resistance presses (150 Kva) for tools. Two point-welding machines. Three special machines for welding nuts and screws. Two ABB robots for arc-welding under protective gas (MIG-MAG). Rotating automatic positioners. Equipment for both TIG welding (INOX-ALUMINI) and oxy-acetylene welding.