Which scale of manufacturing involves producing one unique custom made product?

One-off manufacturing refers to the process of producing a unique, custom-made product specifically tailored to an individual customer's specifications or requirements. This type of manufacturing is characterized by its exclusivity, as each product is made once and typically without producing additional units unless required. It allows for high levels of customization and flexibility, accommodating specialized designs or intricate craftsmanship that mass production cannot provide.

In contrast, the other manufacturing methods focus on different production scales. Low-volume production typically involves creating a small number of identical products, mass production revolves around producing large quantities of standardized items to meet high demand, and continuous production involves ongoing processes that create products without interruption, often suitable for homogeneous goods. These methods do not offer the same level of customization or uniqueness inherent in one-off manufacturing.