Price description: Filter medium:pe, pp, nmo, ptfe Collar extension type:polypropylene, nylon, polyester, stainless steel Relative filtrationpore size:0.5/1/3/5/10/25/50/80/100/200 âµm Type:various specifications Airtight method:heat fusion, reverse sewing Effective filtration area:various specifications Others:special requirement of diameter and collar extension can be customized 1.Polypropylene needle punched felt 2.Surface easily dedusting treatment needle punched felt 3.Stexf polyester needle punched felt 4.High tension, low elongation and shrinkage needle punched felt 5.Acrylic middle temperature hydrolyze resistant needle punched felt 6.Milter medium temperature needle punched felt