Numerous firms , including ASEA Brown Boveri, Electrical Siemens, Endress+Hauser , and Emerson Electric, lead the industrial automation sector . ASEA Brown Boveri specializes in power & automation and https://mnobookmarks.com/story21862871/abb-versus-electrical-siemens-versus-endress-hauser-versus-emerson-a-look-at-leading-automation-firms