This series of products adopt polyester fiber weaving, material code PET, divided into three types of staple fiber, filament and monofilament. The product has polyester fiber performance temperature < 130 ℃. The product is mainly used in pharmaceutical, non-ferrous metal smelting, chemical industry, In chemical fertilizer and other industries, the filtration accuracy of the products can be less than 5 microns, such as plate and frame pressure filtration, centrifugal filtration, vacuum filtration and flue gas dust removal.