The marble grain coated aluminum is high end color coated aluminum product with beautiful marble and stone look for used in decoration. The base material of marble grain coated aluminum sheet often adopts 1100 H24, 1060 H24, 3003 H24, 5005 H24 and other alloys. Production process of marble grain coated aluminum mainly includes the following steps: Aluminum substrate coil: choose suitable aluminum coil as the substrate. Pre-treatment: Pre-treatment of aluminum …