... acid resistance 3.excellent wear and tear resistanceNonwoven needle punched Filter bag1)Materials: Polyester, Nylon, PP, PE, PTFE, ... ,nylon nonwoven lining,ping pong hotmelt,dust collector filter cloth and fiter bagsOperational AddressHuaxin Industrial Park, Niancuopu ... 50 PeopleNo. of QC StaffAbove 50 PeopleOffice Sizeabove 2000 square metersManagement CertificationISO 9001:2000ISO 9001:2008ISO 14001 ...