1.Q: Can I get a sample for the sodium me tabisulfite?A: Yes, we can provide 100-500gram sample for free.
2.Q: What is the Shelf Life of the product?A: 2 years.3.Q:Are you a trade company or factory?A:We are a trade company and we have many parters.
4. Q:How do you control the quality?
A:We control our qualiy by the factory testing department.
5.Q: Is there a discount?
A : Diff erent quantity has different discount.