.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.
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