Flame retardant filter paper

NPAT4102PA (Air filter paper of passenger car,resist burning)
Grammage:138g/m2
Thickness:0.55mm
Burst strength:300Kpa
Gurley stiffness:2500mgs
Air permeability(ΔP200Pa)230L/m2/s
Max pore size:63µm
Mean pore size:51µm
Resin content:20%
Volatiles:4.0%
Resist burning grade:F1 grade
Color:light yellow,can be changed as requirements.
Size:max width is 1200mm,can be cut as requirements.
Package:inner is plastic bag and outer is knit bag.
Min order:1×20'container,about 5 tons.
Supply cap