The production pro¢ess has evolved from one-coating-and-one-baking to double-coating-and-double-baking, and eventhree coating The color of the prepair & ed steel sheet has a very wide selection,like orange, cream-colofed, dark sky blue, sea blue, bright red,brick red, ivory white, porcelain blue, etc.The prepainted steel sheets can also be classified into groupsby their surface textures, namely regular prepainted sheets,embossed sheets and printed sheets.The prepainted steel heets are mainly provided for variouscommercial purposes of architectural construction,electrical household applianges, transportation, etc.