Research on the impact of servitization on the upgrading of China's manufacturing industry Research on the transformation and upgrading of China's marine industry Research on the contribution of value added tax of China's manufacturing industry Research on the influence of FDI on the transformation and upgrading of Beijing manufacturing industry Research on the declining proportion of China's manufacturing industry The transformation and upgrading of China's manufacturing industry Research on import of service trade and innovation-driven development of China's manufacturing industry Research on the marketization development of China's aging industry Research on the institutional factors of comparative advantage of Chinese manufacturing industry Mechanism and path of modularized innovation to promote the upgrading of Chinese manufacturing industry