... /NO/Mini/Large spangle ProductsGalvanized Steel Coil/Plate/Sheet, GI, HDGIGradeSGCC, DX51D,etcSurface TreatmentChormated or not, ... ranked 57th among the top 500 enterprises of China in 2010.) Tianjin Haoyou mainly deals with steel ... , which have already expanded to the market in China and other countries like America , South Korea, ... Kenya, Saudi Arabia and European countries. galvanized roofing sheet