... .Certificate:ISO9000:20085.Coating Thickness:20micron on the surface and 6-8 on the back6.Color Options: any color according to ... Applicable to a humid climate and the harsh corrosive environment4. Products has been all over the country more than 20 provinces, ... , and have been exported to Europe, North American, the Middle East, the South East Asia, Africa, Asia,European and other countries ...