Description: type of connection differing in mechanical construction; Name: connection A1  (construction)
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 of the connection, muff A1
Description: standards-based seal coding system that uses letter or number combinations to describe the material composition of the mechanical seal pair; Name: material pairing of the dynamic seal