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        久久婷婷五月综合色和啪,久久综合九色综合97婷婷,国产成人AV综合色,综合激情五月丁香久久

        Standards research and revising: mainly including the research and revision of international standards, national standards and enterprise standards. So far we have accomplished totally thousands of items of various types which are widely used in the process of design and production for manufacturing enterprises.
        Standardization subject research: mainly undertaking the standardization research which are commissioned by countries and ministries. Now we have undertaken dozens of subjects including the special grand national science-technology project, the project supported by national science and technology, the 863 project, the National Standards Commission-based public project and the basic research from COSTIND(Commission in Charge of Science, Technology and Industry for National Defense).

        久久婷婷五月综合色和啪,久久综合九色综合97婷婷,国产成人AV综合色,综合激情五月丁香久久