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   In some provinces and cities in the quality of sampling, I learned that there are some small business product quality there is a big problem in this AQSIQ some of the provinces and cities in some valve manufacturers conducted a random spot checks, of which seven companies 7 kinds of products are substandard products. However, some of the seven enterprises have also received the title of "National Inspection-free Product", and the main reason for these problems is that some manufacturers cut their own jerry-building work in an attempt to manufacture valve products without using the product quality standards. Mainly in the rough: the rough thickness of the workpiece poor; castings poor quality of the surface roughness; casting dimensional accuracy is poor; common valve leaks serious, and even some of the valve can not guarantee a reliable maintenance work period; in the process or more or Less neglected, many companies obviously have a warranty system, but in actual use but no useless, quality management implementation of its own, arbitrary; Although the overall level of China's valve industry has been greatly improved, but the product quality is not stable enough , Such as running, running, dripping, leakage phenomenon often appear in domestic valves. Experts remind the majority of manufacturing enterprises, the quality is still the main problem in the current industry, in order to remain invincible in the market, we must ensure good quality and quality products, practical product quality management, ISO9001 quality system does not go through the field, the real Fall to the quality of the enterprise. At present, efforts should be made to reverse the bad phenomenon of "lack of innovation and imitation" and strive to improve product quality so that the valve product quality can reach a new level.