Q1:The difference between vacuum coating machine and sputtering
coating? A: Vacuum sputter coating is more uniform than evaporative
coating Q2:Can i visit your factory? A:Yes, welcome to visit our
factory, Address: 3988. Tokyo Road Economic development zone
Qingzhou city,Shandong province,China (Mainland) Q3:How do you
control your quality? A:Each process will be tested by our own
inspection department to make sure the product quality.