Zinc Alloy without Surface Treatment: 

Zinc Alloy with Surface Treatment: 

1  Without & with Anodize Surface Treatment:                                                                              

2  With & without Plating (chrom plating) -Front Side: 

 With & without Plating (chrom plating) -Back Side: 

3 Without & with Powder Coating - Front Side:

Without & with Powder Coating - Back Side:

 4 With & without Vibration Milling - Front Side:  

 With & without Vibration Milling - Back Side: