Zhehan filter ® We are committed to the R&D, customization, and production of stainless steel filter products. Zhehan filter has accumulated 25 years of production experience and has 13 technical patents. The advantages of the product are: perfect roundness and coaxial, high welding strength, slot size tolerance (5 microns), and the highest filtration accuracy is 1 microns. The surface treatment process can improve the corrosion resistance and hardness of the product. Perfect roundness candle filter element & 10-micron wedge wire filter products are ahead of the market. We can provide customized processing services to customers all over the world.