Description: date on which the product was completed by the manufacturer and is ready for sale; Name: Date of creation
Description: Date from which the production and / or development process is completed or from which a service is provided completely; Name: Date of manufacture
Description: a specific design within the context of a type, which is generally characterized by its dimensions. A construction can comprise several design (variants), which generally vary in terms of mechanical details; Name: Construction form of the seal surface, connection, muff A1