... washed repeatedly customized the size,design. Nylon filter bag(Nylon mesh filter bag): Materials: Polyester and Nylon. Monofilament or Multifilament ... size can be customed.Specs:Material: glass-fiber with PTFE coated P84,PPS,NOMEX,FMS needle punched feltWeight: 550g/ ... felt,FMS filter felt,Antistatic filter felt,PTFE filter bag,PPS filter bag,P84 filter bag,Polyester two proof needle punched felt, ...