... Metal Structure Co.,Ltd is a professional color coated ppgi for metal roof manufacturer and factory,Website: ... weldedpipe.com, we have been exporting high quality color coated ppgi for metal roof made in China for years, ... , S350GD, S450GD, S550GDTechniqueCold rolled, hot-dipped galvanizing, color coated, galvanized, GalvalumeSpangleZero spangle, regular spangle or normal spangleSurface ...