1. How about your quality? 
&Our company go through ISO9001: 2015 quality management system certification. 
& The company has an on-site certification SGS that you can trust. 
&  Most products pass CE production certification. 

2. What's the warranty? 
Our warranty is 1 year. It means in the correct installation and normal Instructions, If our goods have any quality problem, we will re-produce for you again for free. 

3. What is your delivery time? 
Usually 7-10 working days after payment. 

4. What is your packaging and shipment? 
&Carton inside, wooden outside or as your requirements.
&By international express, air and sea.
&Shipment port: Shanghai or any other Chinese ports.

5. What's your service? 
&Answer all your questions about the products patiently and technical advisory for any time.
&All filter element will be tested before shipment.
&Provide you newest goods transport conditions until you receive our products.

6.  What's your sample policy? 
We do free sample wtih shipfee collected.

7. What's the terms of payment? 
We usually do T/T 30% as deposit, and 70% before delivery.

8 . Can I use my own logo on the products? 
A: Yes, customize logo on the products are available.