1. How is the quality?
The qualities of most products are above 99% purity, same are 99.7% purity.
2. How is the package?
Aluminum foil bag or as customer's required.
3. How is the storage?
Keep in dry and cool place.
4. Do I need to pay extra for shipping cost?
No, our price includes the shipping cost already; you need not pay for any tax and others.
5. Can I order sample to test?
Yes, you are welcome to order sample before placing bulk order. We will send the sample directly to your door by courier.