FEATURES 1. Better Performances     We select various heavy-duty and light-duty imported filter paper and a safe air filter paper for air filter elements according to their different applications and working environments, so that our air filter elements have a high efficiency and long service life to meet our customer’s requirements. 2. Reliability in Application     All materials are imported from the famous foreign suppliers. Under our manufacturing strict quality control, to ensure that our air filter elements have the shake-proof, corrosion-proof and anti-collapse performance during long service period.