1.Are you factory?
yes.
2.Can you supply full production line for different filters?
yes.
3.Do you accept OEM/ODM?
Yes, we accept OEM/ODM with your authorization.
4.How is delivery time?
Generally it takes 7-15 days for regular type , for big quantity or OEM/ODM orders, please negotiate with sales
5.What's your warranty time?
We offer 18 months warranty service, life time technique support.
Audited Supplier 
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