Research on the length of global value chains of China's manufacturing sectors 并列题名：Research on the length of global value chains of China's manufacturing sectors Research on the impact of global value chain embeddedness on green innovation of China's manufacturing sector Research on the contribution of value added tax of China's manufacturing industry 并列题名：Research on the impact of global value chain embeddedness on green innovation of China's manufacturing sector Research on innovation-driven development and global value chains upgrading of China's manufacturing industries Research on the global value chain of digital creative industry Research on the status upgrading of global value chain of China's wood industry Research on the declining proportion of China's manufacturing industry Research on the excess capacity over Chinese manufacturing industry