Costruzione in lamiera  Fabbricanti, Commercianti, Fornitori

Welded assemblies always consist of at least two non-demountable components. The components joined together in a welded assembly are produced separately according to predefined production processes.
Parts lists (also called bills of material) are created in order to disclose the individual parts in orders or documentation. These contain each individual part, including weld studs, weld nuts and other small details, necessary for the production of a welded assembly. These parts lists are necessary in order to order material or bought-in parts and therefore to implement proper production planning and control. At the end, in the case of a welded assembly, a self-contained object or component is created.