ndh, neh, hexen high purity research chemicals

Description

1.Q: What is the quality of your company?
  
 A: The qualities of the most products are above *9% purity, some are *9.7% purity.
  
 2.Q: How is the package?
 A:Aluminum foil bag or as customer's required.
  
 3.Q: How is the storage?
 A:Keep in dry and cool place.
  
 4.Q: Do I need to pay extra for shipping cost?
 A:No, our price includes the shipping cost already; you need not pay for any tax or others.
  
 5.Q: May I order sample to test?
 A:Yes, you are welcome to order sample before placing bulk order.We will send the sample
 directly to your door by courier.
  
 6.Q: What's the delivery time ?
 A:Usually , we will ship for you as soon as paid,or **2 days after confirm your payment.