The main purpose of the warning tape: the general warning tape is used to identify the road warning area. Common in engineering construction areas, risk areas and car accident accidents, emergency protection, and its electrical engineering maintenance, traffic law enforcement, and environmental protection equipment projects. Available to select traffic accident scene or unique area of warning standard. The protection of temporary safety passages such as hotel restaurants, fitness sports venues, and large shopping malls can be used together with road cones and traffic travel marker posts. Buried warning tape are generally used in: water supply and drainage, heating, drinking water and sewage treatment in big cities, direct buried natural gas pipelines, oil pipelines , Electric Power Engineering (high voltage, bottom pressure,) communication cable optical cable cable (Telecommunications Network, Mobile, China Unicom, Tietong, Internet, TV Broadcasting The warning safety protection of the fifth type of transportation management system and information content transmission system software related to the reform of the demand side, etc. It is separately carried out with the pipe-piercing, buried in the middle of the road surface and the pipeline, and has the functions of signing warnings and detecting pipes to prevent accidental excavation and damage to the pipeline. It has a significant safety protection warning effect for various large-city pipeline network construction sites, road construction sites, and direct buried pipelines in the field.