Hard anodizing: 1) Material: Al 6061, 7075, 2) Film thick: 30-60um, 3) Hard: HRC60, 4) Packaging: Polybag+carton. Hard anodizing:Specialize in aluminum machining, forging, sand casting, die casting and stamping as well as anodizing and hard anodizing in Zhongshan city, Guangdong province, utilizing aluminium 2011, 2017, 2024, 5083, 6061, 6063, 6082, 6463, 7075 etc. according to customized ...