| 摘要 |
PURPOSE:To make the searching of the buried object such as power line from the ground easy by using the mark comprising affixing an aluminum foil to one surface of a long-length strip-form base fabric and affixing a protecting sheet over the entire surface thereof. CONSTITUTION:The mark A is formed by affixing a long-length strip-form aluminum foil 2 onto a long-length strip-form base fabric 1 composed of woven fabrics made of synthetic resin by leaving a portion (1a) on both sides in the width direction thereof and coating the entire surface of the foil 2 by a corrosion-preventing material 3 and further affixing a protecting sheet 4 composed of synthetic-resin-made film over the entire surface thereof. The mark A is buried along the upper side of the buried object such as power line buried in the ground G. Searching of the buried object M is readily accomplished by searching the mark A by the metal searcher T on the ground. |
