Color Coated Galvanized Steel Strip, also known as Prepainted Galvanized Steel (PPGI) or Prepainted Galvalume Steel (PPGL), is a composite material manufactured by applying organic coatings (e.g., polyester, silicon-modified polyester, polyvinylidene fluoride) onto a galvanized or galvalume steel substrate. The substrate undergoes surface pretreatment (chemical degreasing and conversion coating) before the coating process, followed by high-temperature baking for curing. Its vibrant colors and functional properties make it widely used in construction, appliances, transportation, and industrial sectors.