The use of the geographical warning tape: The ordinary warning tape is used for the indication of the ground warning area. It is often used in construction sites, dangerous areas and traffic accidents, isolation of emergencies, and the cover of power maintenance, road administration, and environmental protection projects. It can be used to delineate the accident scene or to warn and standardize special areas. Loading and unloading goods, busy areas, and the division of temporary spaces; the isolation of temporary passages such as hotels, sports venues, shopping malls, etc. can be used together with road cones and traffic marker posts. Buried warning tape is widely used in: urban water supply and drainage, thermal power, tap water discharge, direct buried gas pipeline, oil transmission pipeline, electric power (high pressure, low pressure,) communication cable optical cable (Telecom, China Mobile, China Unicom, Tietong, network, radio and television ) and other warning protection of the fifth type of transportation system and information transmission system of the national economy and people's livelihood, shall be carried out at the same time as the construction and buried pipes, and buried in the middle of the ground and pipeline, which plays the role of sign warning and detection of pipes, so as to avoid accidentally digging and damage to the pipeline. In particular, it has obvious protective and warning roles for various urban pipe network construction sites, road construction sites, and direct buried pipelines in the field.