Bags commonly known as the hat hanging hat hanging hat, lifting and sealing of the inner filter dust removal equipment bag, generally equipped with a bag larger, mainly used in low filtration velocity, the larger spaces of the dust removal equipment, such as cement plants, steel mills, smelting, chemical, woodworking and other places. ancillary parts hanging compression spring; hanging chains and other accessories. hanging cap within the filter dust removal equipment bag lifting and sealing devices, mainly used in filtration velocity lower dust removal equipment and larger places.