Color-coated coils use hot-dip galvanized sheets, hot-dip galvalume sheets, electro-galvanized sheets, etc. as substrates. After surface pretreatment (chemical degreasing and chemical conversion treatment), one or more layers of organic coatings are coated on the surface. , a product that is subsequently baked and solidified. Colored steel coils are named after being coated with organic coatings of various colors, referred to as color-coated coils.

Galvanized coil, the thin steel plate is immersed in a molten zinc bath, so that a layer of zinc is adhered to the surface of the thin steel plate. It is mainly produced by the continuous galvanizing process, that is, the rolled steel plate is continuously immersed in a plating bath containing molten zinc to make galvanized steel plate; alloyed galvanized steel plate.

Lanna International Trade (Shandong) Co., Ltd. was established in 2020 and is located in Liaocheng City, Shandong Province. The company covers an area of 300000 square meters and has a registered capital of 30 million yuan. Its main products include hot-rolled, cold-rolled, galvanized, galvanized aluminum, pre coated steel, and stainless steel coils, strips, plates, pipes, and bars; Carbon steel plates, pipes, coils, bars, and profiles; Copper, aluminum, and alloy steel products are a metal material manufacturer and exporter that integrates factories and trade.