Products manufactured using retroreflective material will have one of these tags. The retro-reflectivity will be indicated using symbols (icons) and/or abbreviations on our website (and in our catalog) as follows:
  NREF - Non-Reflective
  SEMI - Only some elements are reflective
  EG - Engineering Grade
  EGP - Engineering Grade Prismatic (discontinued)
  HIP - High-Intensity Prismatic
  DG  - Diamond Grade