Research on the mechanism and model of green transformation of China's manufacturing industry driven by green innovation Research on the impact of fiscal and tax policies on green transformation and upgrading of manufacturing industry from the perspective of high-quality development Research on the efficiency measurement and path optimization of China's manufacturing industry upgrading driven by "internet plus" Research on the mechanism and model of open market of agricultural land circulation Research on the mechanism of international production capacity cooperation in China's equipment manufacturing industry under "The Belt and Road" initiative Research on the declining proportion of China's manufacturing industry Research on the mechanism and path of the manufacturing industry upgrading with "Internet Plus" Research on the mechanism，path，and countermeasures of value chain climb in China's manufacturing industry under the perspective of high quality development Research on the mechanism, path, and countermeasures of value chain climb in China's manufacturing industry under the perspective of high quality development Research on the transformation and upgrading of manufacturing industry in Henan province