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China closed down more than 600 factories that produced inferior steel, with a production capacity of 120 million tons, between January and June last year, data from the China Iron and Steel Association show.

China has made notable progress in ecological protection in recent years, and NGOs with increasing numbers of volunteers are playing an important role.

China has also become Spain's largest non-EU trading partner. Bilateral trade volumes rose from million in 1973 to a record .9 billion in 2017.

China has been upgrading its dairy industry with improved supply-chain management and safety supervision, as the country's growing consumer power calls for high-quality and more diverse dairy products.

China has a component role on every current Boeing commercial airplane model, including the world's most technologically advanced airplane, the 787 Dreamliner, and more than 9,000 Boeing airplanes fly throughout the world with integrated China-built parts and assemblies, Bruns said.