Home Business China's top steelmaking city deepens output curbs to fight smog Business China's top steelmaking city deepens output curbs to fight smog By Genpie - December 8, 2018 297 0 Facebook Twitter Google+ Pinterest WhatsApp Steel mills and other industrial plants in China’s top steelmaking city Tangshan were on Saturday ordered to make further output cuts in December, as part of emergency measures to fight smog.