Line-Link sources raw materials from both domestic and international suppliers. This strategic sourcing is based on a careful selection process to ensure that the materials used are of the highest quality, regardless of their origin. By combining the best of both domestic and imported materials, Line-Link enhances the performance and durability of their filters.

Line-Link adopts the imported reciprocate pleat machine DOUBLE WIN for folding paper and gluing. The folding paper is firm and the folding distance is even . We have obtained the best folding distance after repeating adjustment of the folding distance test to reach the minimum resistance of air filter. The resistance of our filters are 15% -20% lower than the same efficiency of products in the market.