Check construction workers, not only to pass the classes used in the construction materials, engineering equipment, construction machinery, construction technology and construction environment condition such as whether completely meets the requirements, but also by the quality inspection, testing a variety of ways, such as timely inspection process quality, unit and other concealed engineering construction quality, parking project regularly appearance of quality at the same time, make the quality of the visa, also need to summarize the experience of the construction process in a timely manner and to analyze the problems in the construction quality, timely processing and issued strict demonstration engineering quality defects after processing, quality accident treatment measures,