Recently, the State Intellectual Property Office issued a special circular, Xuzhou CAIFA Aluminum Heat Transfer Co., Ltd. issued a "The polishing technical of mirror polished aluminum checkered plate process and the preparation method" authorized by the State Intellectual Property Office patent (Patent No.: 2008102426874). At this point with early access to the "6016 high strength aluminum alloy plate casting process" invention patent (patent number: 2007100226192), it have complete independent intellectual property rights.