... plants, smelting industry, 100% polyester filter bagMaterial: woven fabric and needle felt made in polyester, polypropylene, Nomex, FMS, glassfiber, PTFE.Served ... be applied to either side of the dust collector bag to enhance cleaning and efficiencies, as well as prolonging ... rings, and other options can easily be incorporated into bag construction. can custom fabricate various types of attachments to ...