Iron, zinc
The main ingredients of PPGI include iron and zinc. The main ingredient of PPGI (pre-painted galvanized steel sheet) is galvanized steel sheet, which has a layer of baking paint on the outside, which can effectively protect the steel sheet from erosion by wind and sun. The surface coating of baking paint can be changed according to the needs. It is beautiful and practical, and is a common material for roof resin tiles.
