| Special Alloy | GX5CrNiNb19-11 | UNE | Spain | Spain structural alloy steel | 
                              
                    | Special Alloy | GX5CrNiMoNb19-11-2 | UNE | Spain | Spain structural alloy steel | 
                              
                    | Special Alloy | GXSCrNiMo19-11-3 | UNE | Spain | Spain structural alloy steel | 
                              
                    | Special Alloy | GXSCrNiMo19-11-2 | UNE | Spain | Spain structural alloy steel | 
                              
                    | Special Alloy | GX5CrNiCu16-4 | UNE | Spain | Spain structural alloy steel | 
                              
                    | Special Alloy | GX5CrNi19-10 | UNE | Spain | Spain structural alloy steel | 
                              
                    | Special Alloy | GX4NiCtCuMo30-20-4 | UNE | Spain | Spain structural alloy steel | 
                              
                    | Special Alloy | GX4CrNiMo16-5-2 | UNE | Spain | Spain structural alloy steel | 
                              
                    | Special Alloy | GX4CrNiMo16-5-1 | UNE | Spain | Spain structural alloy steel | 
                              
                    | Special Alloy | CX4CrNi13-4 | UNE | Spain | Spain structural alloy steel | 
                              
                    | Special Alloy | GX2NiCrMoCu25-20-5 | UNE | Spain | Spain structural alloy steel | 
                              
                    | Special Alloy | GX2NiCrMoN25-20-5 | UNE | Spain | Spain structural alloy steel | 
                              
                    | Special Alloy | GX2NiCfMoCuN29-25-5 | UNE | Spain | Spain structural alloy steel | 
                              
                    | Special Alloy | GX2 N iCrMoCuN25-20-6 | UNE | Spain | Spain structural alloy steel | 
                              
                    | Special Alloy | GX2NiCrMo28-20-2 | UNE | Spain | Spain structural alloy steel | 
                              
                    | Special Alloy | GX2CrNiMoN26-7-4 | UNE | Spain | Spain structural alloy steel | 
                              
                    | Special Alloy | GX2CrNiMoN25-7-3 | UNE | Spain | Spain structural alloy steel | 
                              
                    | Special Alloy | GX2CrNiMoN25-6-3 | UNE | Spain | Spain structural alloy steel | 
                              
                    | Special Alloy | GX2CrNiMoN22-5-3 | UNE | Spain | Spain structural alloy steel | 
                              
                    | Special Alloy | GX2CrNtMoN17-13-4 | UNE | Spain | Spain structural alloy steel | 
                              
                    | Special Alloy | GX2CrNiMoCuN25-6-3-3 | UNE | Spain | Spain structural alloy steel | 
                              
                    | Special Alloy | GX2CrNiMoCuN20-18-6 | UNE | Spain | Spain structural alloy steel | 
                              
                    | Special Alloy | GX2CrNiMo19-11-2 | UNE | Spain | Spain structural alloy steel | 
                              
                    | Special Alloy | GX2CrNi19-11 | UNE | Spain | Spain structural alloy steel | 
                              
                    | Special Alloy | AM-X35CrNi286 | UNE | Spain | Spain structural alloy steel | 
                              
                    | Special Alloy | AM-X45Cr28 | UNE | Spain | Spain structural alloy steel | 
                              
                    | Special Alloy | AM-X45Cr22 | UNE | Spain | Spain structural alloy steel | 
                              
                    | Special Alloy | AM-X55NiCr3515 | UNE | Spain | Spain structural alloy steel | 
                              
                    | Special Alloy | AM-X40CrNi2520 | UNE | Spain | Spain structural alloy steel | 
                              
                    | Special Alloy | AM-X35CrNi2512 | UNE | Spain | Spain structural alloy steel | 
                              
                    | Special Alloy | AM-X30CrNi2010 | UNE | Spain | Spain structural alloy steel | 
                              
                    | Special Alloy | X85CrMoV18-2 | UNE | Spain | Spain structural alloy steel | 
                              
                    | Special Alloy | X55CrMnNiN20-8 | UNE | Spain | Spain structural alloy steel | 
                              
                    | Special Alloy | X53CrMnNiN21-9 | UNE | Spain | Spain structural alloy steel | 
                              
                    | Special Alloy | X50CrMnNiNbN21-9 | UNE | Spain | Spain structural alloy steel |