Faq

We are a professional filter manufacturer located in Qinghe, Hebei Province. We own a 40,000‑square‑meter modern factory, full‑set production lines and independent R&D laboratory. All products are produced in‑house.

We have passed ISO 9001 and IATF 16949 quality management system certifications. We built a provincial‑level physical‑chemical lab for filter performance testing to guarantee product stability.

Our product range covers automotive oil filters, air filters, cabin filters, transmission filters, as well as industrial filtration elements. Custom‑developed filters are also available.

Yes. Our R&D team supports custom solutions including filter size, filter media, housing material and performance parameters. We can finish sample testing before mass production.

MOQ depends on product types. For standard stock filters, small trial orders are acceptable. For custom‑made filters, higher MOQ will apply, please contact our sales for detailed info.

We have complete production capacity, sufficient raw‑material stock and mature logistics network. Dedicated sales managers track every order, to meet different customers’ shipping schedules.

We provide 24‑hour dedicated account manager support. Any quality feedback will be followed and evaluated quickly based on our full‑process traceability system.

Yes. Our internal laboratory can generate performance test reports for filters. Third‑party test documents can also be arranged upon customer request.