... , 1.0um, 3.0um 3.DIAMETER:13, 25, 47, 50, 90, 100mm SPECIFICATION: 1.MATERIAL: PTFE (Polyether Polytetrafluoroethylene) 2.PORE SIZE: 0 ... , 1.0um, 3.0um 3.DIAMETER: Φ13, Φ25, Φ47, Φ50, Φ90, Φ100, Φ106 Φ142, Φ150, Φ200, Φ250, Φ293, Φ300 Remark: Roll ...