*A job as a Sales Representatives, Wholesale and Manufacturing, Except Technical and Scientific Products falls under the broader career category of Sales Representatives, Wholesale and Manufacturing, Technical and Scientific Products. The information on this page will generally apply to all careers in this category but may not specifically apply to this career title. Job Description for Sales Representatives, Wholesale and Manufacturing, Technical and Scientific Products : Sell goods for wholesalers or manufacturers where technical or scientific knowledge is required in such areas as biology, engineering, chemistry, and electronics, normally obtained from at least 2 years of postsecondary education.