Polytetrafluoroethylene (PTFE) filter bag sewing thread is the preferred thread for high-end filter bag sewing in bag dust removal technology.The product is mainly used for the excellent material properties of polytetrafluoroethylene (PTFE) such as temperature resistance, corrosion resistance, and oxidation resistance to ensure that the quality of the filter bag can be used for dust filtration in harsh working conditions such as high temperature and corrosive gas emissions.