How to obtain best quality anodized aluminum products？

How to obtain best quality anodized aluminum products? Step 1, from first procedure to the last procedure of production, no obvious scratches and defects allowed. Step 2, anodize the parts to best effect to specification. Step 3, careful operation while take the part off hanging racks. Step 4, dig the part into clean water again to make sure chemicals dissolved by the water and no residual left in holes. Step 5, check each pc to make sure no defects on the part and remove stains by cloth or gas gun. If you want to know more about high quality aluminum products, follow me.