The Riverside Company has acquired HMI Cardinal, a manufacturer and distributor of glass and metal products used for shower enclosures, storefronts and other applications. HMI Cardinal has four operating divisions: (1) Cardinal Shower Enclosures (www.cardinalshower.com) is a manufacturer of shower enclosures, premium cast glass and tempered glass; (2) Cardinal Commercial Products (www.cardcompro.com) manufactures a line…...