Commercial & Industrial District. In a Commercial & Industrial District, all open storage of junk, scrap metal, rags, wastepaper, and similar used materials shall be completely screened from view at normal eye level six feet in height from any public or private way or from any premises. Any other use conducted outside a completely enclosed building, except an open use permitted in General Business Districts, shall, if visible at normal eye level from any point within a Single Residential SRA, SRB, SRC or SRD District and if located less than 200 feet from a Single Residential SRA, SRB, SRC or SRD District, be completely screened from such view. Screening required under this subsection shall be by an evergreen planting or other attractive suitable visual barrier.