From the perspective of the number of enterprises, 2019 China's annual output of steel structure more than 1 million tons of enterprises have 4, 500-1 million tons of enterprises 11, 100-500,000 tons of enterprises 39, 50-100,000 tons of enterprises 33, more small and medium-sized enterprises in the industry, less head enterprises.
We use cookies to offer you a better browsing experience, analyze site traffic and personalize content. By using this site, you agree to our use of cookies.
Privacy Policy