PPGI is prepainted galvanised steel, also known as precoated steel, coil coated steel, color coated steel etc.A galvanised steel Pre-Painted Hot Dipped Galvanized Steel Product Hot Dipped Galvanizing:PPGI is prepainted , also known as precoated steel, coil coated steel, color coated steel etc.A galvanised steel sheet in form is cleaned, pretreated, applied with various layers of organic coatings ...