The gi coil(galvanized coil), also known as galvanized sheet, is a metal coil that has a layer of zinc coated on the surface of cold-rolled or hot-rolled steel sheets. This coating effectively prevents direct contact between the steel sheet and the external environment, thus providing corrosion and rust resistance. The production processes of galvanized coils mainly include hot-dip galvanizing and electro-galvanizing. The galvanized coils supplied by Yuantai Derun possess excellent corrosion resistance and processing performance, and are widely used in products across various fields such as construction, home appliances, automobiles, containers, transportation, and agriculture.

Color coated coil is a type of steel plate that has undergone surface coating treatment. It is obtained by performing surface pretreatment (degreasing and chemical treatment) on hot-rolled substrates, galvanized substrates, aluminum zinc coated substrates, cold-rolled substrates, tin plated substrates, stainless steel substrates, etc., and then applying one or more layers of liquid coating by roll coating method. The plate is then baked and cooled to obtain the final product. This type of board is widely used in fields such as construction, home appliances, transportation, etc. due to its beauty, corrosion resistance, weather resistance, and other characteristics.