Qilu Dida high-performance wire has a third-party test report. According to relevant public information, Qilu Dida high-performance wires belong to the category of wires and cables, and a third-party inspection report must be provided at the time of acceptance. The inspection report of the third-party inspection organization is stamped with the official seal of the company and the seal of CMA or CNAS, so all Qilu Dida high-performance wires have third-party inspection reports. CMA chapter is the metrological certification of China. According to Article 22 of the Metrology Law of People's Republic of China (PRC) and the provisions of the National Metrology Law, the product quality inspection institutions that provide notarized data to the society must be qualified by the metrological administrative department of the people's government at or above the provincial level for metrological verification and testing ability and reliability evaluation.