Norm & Standard is a database of l norms & standards relevant to the building & construction industry.
　　　　+ Norms & standards from the national level, industrial level and regional level, compulsory norms & standards , as well as the updates;
　　　　+ Listed by 12 categories;
　　　　+ Regional norms & standards by provinces;
　　　　+ Built-in search engine;
　　　　+ Support search by text;
　　　　+ Key words search by norms & standards from the national level, industrial level and regional level, compulsory norms & standards , as well as the updates;

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