1. Whether the IC card cold water meter has a legal legal legal person business license, whether it has passed the provincial quality and technical supervision bureau's appraisal, whether it has a legitimate business license and a provincial quality supervision department's license can be selected, otherwise it is not necessary.
2. Whether the products have been approved by the relevant departments of the Ministry of Construction. Can we enter the industry and use it and obtain the market access qualification certificate of the relevant departments of the Ministry of Construction?
3. The manufacturer should have a certain scale of production, whether it has advanced production equipment and strict management system, and the environment and hygiene of the manufacturer.
4. Whether the manufacturer of the product has the certificate of quality management system certified by the international certification company, and whether it attaches great importance to the overall quality level of the product.
5. The actual quality of the product should be tested in advance for a period of time, and be checked by the local technical supervision department to see if it is qualified. The quality of the product has been proved to be reliable by the trial, and the products that are also qualified by the technical supervision department.
6. Whether the product has been applied by other water companies, and what is the effect? The products that have been tried out by other units and reflect well should be selected.