Frequently asked questions
The questions filter paper buyers ask us most often.
What filter paper does Guoheng produce?
We produce seven product families: oil filter paper, air/oil filter paper, air filter paper, fuel filter paper, dual-use air/oil filter paper, flame-retardant paper and oil-water separation filter paper. They are supplied in rolls or slit to the width you require.
Which industries use your filter paper?
Mainly internal combustion engine filters - oil filters, air filters and fuel filters. Our paper is also used for filtration in light industry and in the petrochemical industry.
Can you supply paper to our own specification?
Yes. Send us the width, basis weight, roll diameter and packing requirements and we will confirm the supply plan and lead time.
How do I get a quotation?
Use the online form, call 0578-6388888 or e-mail gh@guoheng.biz. It helps if you include the product family, specification, estimated quantity, delivery address and required date.
Can I get samples before ordering?
Please contact our sales team to arrange samples. Tell us the application and the specification you need so we can prepare a suitable grade.
Where is your factory? Can we visit?
Our plant is at Dongshanyang Industry Area, Qingyuan County, Zhejiang Province, China. For factory visits, audits or technical meetings, please contact us in advance to arrange a date.
How are shipping and payment arranged?
Shipping method, transport arrangement and payment terms are confirmed with the quotation and order according to quantity and delivery location.
Can we communicate in English?
Yes. We correspond in English by e-mail at gh@guoheng.biz, and this English site carries our product information.
Still have a question?
Tell us about your application and specification, and we will advise.