Specification for vehicle filter paper: 1) Weight: 115-125gsm 2) Thickness: 0.38mm 3) Air permeability (200Pa L/100cm?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