The mesh number of the carrier can be 200 mesh, 300 mesh, 400 mesh, 500 mesh or 600 mesh, and the cross-sectional shape can be round, runway-shaped, or oval. As well as some special shapes according to customer requirements, the purpose is to adapt to the needs of different models.The metal carrier can maintain a stable working state for a long time and is not prone to failure. The installation and replacement of the metal carrier is relatively simple, It has strong corrosion resistance and can withstand the erosion of acids, alkalis and other corrosive substances.easy to maintain, has high reliability, can operate stably in harsh environments, and is suitable for automobile emission systems.