... ,sewer lines,gas pipes,oil pipes Underground detectable warning tapeWidely used for underground pipe,electrical lines,sewer lines,gas pipes, ... / AL FOIL/BOPP), serves as protection for the underground pipe protection,such as water pipes,gas pipes and oil ... colors,which help strengthen the visual results3) Designed for underground pipe protection4) Specification for each roll:Common Thicknesses: 4mil,4 ...