The block is machined from a piece of forged aluminum. These ingots would then be further forged and worked into Damascus steel blades. For industrial processes steel alloys are primarily forged in hot condition. The and wheel options are available with lightweight forged alloy wheels being standard. Aluminum and titanium may also be forged by the blacksmith's process. The pistons are forged in aluminium. The M16's aluminum lower receivers may be forged or cast. Metal from Noricum was forged and exported. For better strength and fatigue life, some racing pistons may be forged instead. Special edition forged alloys by RAYS in 20-inch size are included. Spotfacing is usually required on workpieces that are forged or cast. Theirs was a friendship which had been forged in boyhood. Important commercial ties were forged with Japan. Later Brazilian made FALs have Type 3, hammer forged receivers. Bill Ruger wanted to use investment casting in place of a forged receiver.