Specification for vehicle filter paper: 
1) Weight: 115-125gsm
2) Thickness: 0.38mm
3) Air permeability (200Pa L/100cm².min): no less than 350
4) Burst strength (KPa): no less than 450
5) Resin content (%): 20~22
6) Maximum pore size: 90
7) Mean pore size: 75
8) Paper color as requested
9) Roll length and roll inner pore diameter as requested
10) Plain paper or corrugated paper as requested