The quality of traffic products is not only directly associated with transportation infrastructure construction, maintenance quality and transportation safety, but also related to the vital interests of the people. Once unqualified traffic products entered into the construction, maintenance and transportation market, they would bury hidden risks for quality and safety. So, how to ensure the quality of traffic products and prevent unqualified products from entering into the transportation market has become a focus of general concern both within and outside the transportation industry. For this, the certification of traffic products provides an answer.
展开▼
