... aluminum - black 3)Standard: GB5237-2008 Alloy Roller Aluminum1)Alloy No.:6061,6063...2)Temper:T3-T83)Surface Treatment:1,Powder Coating ... 2,Anodize 3,Electrophoresis 4,Mill Finish 5,Wood Grain 6, ... -2008 Chinese high precision.8)Equipments: 1,Extrusion production lines. 2,Anodizing and electrophoresis production lines. 3,Spraying production lines. 4 ...