Heilongjiang colored sand, stained colored sand, natural colored sand

  Colored sand is divided into natural sand, permanent staining sand, temporary staining sand.
  Permanent staining sand: Brightly colored, acid and alkali resistance, UV, do not fade.
   Natural sand: From natural ore crushing, does not fade but has more impurities.
   Temporary staining sand: Brightly colored ,easy bleaching

   Decorative colored sand: through the selection-processing, including any dye, non-toxic, tasteless, non-pollution, the corrosion resistance, to bear the acid and alkali, to resist violence exposes to the sun, not change color and so on. It is persistent pollution for the Family, the House's decorative colors.