https://3speak.tv/watch?v=superdou/lmlxmirt
Corrugated PPGI sheet is pre-painted galvanized steel, which is profiled into different corrugations with roller machine. The common styles include wavy, trapezoidal, tile, etc. Compared to plain sheets, corrugated steel sheets are stronger. While it offers more color and finish choices than CGI sheets. It can be used in a wide range of applications, especially roofing and wall panels.