港铁
(Hong Kong) MTR (Mass Transit Railway)
钢铁侠
Iron Man, comic book superhero
钢铁学院
Beijing Steel and Iron Institute (the former name of 北京科技大學|北京科技大学[Bei3 jing1 Ke1 ji4 Da4 xue2], University of Science and Technology Beijing)
钢铁厂
iron and steel works; steelworks
武汉钢铁公司
Wuhan Iron and Steel