42 Engineering; Design and testing for new product development; Design and testing of new products for others; Design of engineering products; Engineering design services; Computer-aided engineering services for others; Consulting services in the field of design and development of engineering processes; Consulting in the field of engineering; Consulting services in the field of product design and development; Custom design of prototypes; Electrical engineering; Mechanical engineering; New product design services; Product development and engineering services for others; Software engineering services