We mainly supply the aluminum absorber with the following two kinds of selective coating:
*Black anodize coating (with compress structure)
*Bluetec eta plus coating (with ultrasonic structure)

With we particularly designed structure, the collector has the Following advantages:
*Avoid any water vapor into the place between copper Aluminum, and thus stop electrolytic corruption
*As good performance as copper absorber
*Can be applied under high pressure up to 12 bar