Color-coated steel sheets are products made by coating or laminating cold-rolled steel sheets or galvanized steel sheets with a surface chemical treatment, followed by the application of a composite organic film (such as PVC film) and then baking to cure. Some people also refer to this product as "pre-coated steel sheets" or "plastic coated steel sheets." Color steel products are produced in rolls on continuous production lines, hence also known as color-coated steel sheet rolls. Color steel sheets combine the high mechanical strength and ease of shaping of steel materials with the good decorative and corrosion-resistant properties of the coating material. Color steel sheets are a newly promoted material in today's world. With the advancement of technology, increased environmental awareness, and the improvement of people's living standards, color steel sheet buildings are increasingly demonstrating their strong vitality and broad market prospects, and are favored by the construction, household appliances, electromechanical, transportation, interior decoration, office supplies, and other industries.

Color-steel activity houses feature lightweight, high strength, thermal insulation, aesthetics, and durability, seamlessly integrating architecture and decoration for quick installation. These houses are easy to construct and maintain, and are widely used in large-span factories, warehouses, office buildings, villas, roof extensions, clean rooms, cold storage, shops, kiosks, and temporary housing. Light color-steel sandwich panels weighing less than 14 kg per square meter can significantly reduce structural load and lower the cost of activity house construction.