Coated steel sheet in coils (standard: astm, jis, bs en, as, isoâ?¦) 1. hot dipped galvanized steel coils (gi coils) 2. hot dipped aluzinc galvalume steel coils (gl coils) 3. pre painted galvanized coils (ppgi) 4. pre painted galvalume coils (ppgl) 5. steel pipes.