News & Updates
Latest news, guides, and insights about industrial filtration technology.
2026
How to identify if a truck filter wholesaler is a truly experienced enterprise with comprehensive expertise in international trade
Guohao: A Trusted Wholesale Supplier of Truck Filters International partners in the filter industry have access to a large number of Chinese wholesale suppliers of truck filters（HS Code:842123/842131）, including foreign trade companies and direct manufacturers. Therefore, it is critical to master effective methods to select trustworthy filter suppliers.
Guohao truck filter moisture resistance testing
The Cobb value test method for Guohao truck filter is a standardized procedure based on the Cobb method, which measures the amount of water absorbed per unit area of paper within a specified time to evaluate its surface water absorption. The key steps include sample pretreatment, water absorption operation, weighing, and calculation, in accordance with the standard GB/T 1540-2002.
Ahlstrom AB8438H AD cellulose paper is perfectly applied in Guohao agricultural machinery air filters
Ahlstrom Filter media.A globally renowned company originating from Finland with over 50-year commitment to the global filtration industry。High-performance solutions tailored for heavy-duty and automotive applications.
How to Choose the Right Fuel Filter for Your Diesel Engine
Selecting the correct fuel filter is critical for injection system longevity. This guide covers key specifications, filtration media types, and water separation considerations.
2024
Guohao Filter: IATF16949 Certified Quality Management Procedures.
On April 14, 2024, Guohao Filter officially obtained the IATF16949 certification, covering the scope of filter production. This achievement is not only the industry's recognition of Guohao Filter but also the driving force that motivates us to continuously enhance our product quality and provide superior protection for more engines.
An accurate way to determine the quality of an air filter
Many air filter distributors can't determine the quality of products. Our company uses advanced equipment and complies with ISO5011 testing standards to effectively determine the quality level of air filters.
