This U.S. industry comprises establishments primarily engaged in (1) stamping metal crowns and closures, such as bottle caps and home canning lids and rings; and/or (2) manufacturing other unfinished metal stampings and spinning unfinished metal products (except automotive and coins). Establishments making metal stampings and metal spun products and further manufacturing (e.g. machining, assembling) a specific product are classified in the industry of the finished product. Metal stamping and metal spun products establishments may perform surface finishing operations, such as cleaning and deburring, on the products they manufacture.