We are shijiazhuang Kelin filter paper co., Ltd , we are built up in  1996 year .we have ISO 9000 certificate .we export our auto filter to Brazil ,Mexico , Russia , and the Middle East , and South Aisa ,and Africa .

Filter paper is mainly used as auto air filter paper, oil filter paper and fuel filter paper. We are one of the biggest manufacture of filter paper in China. Its products mainly include auto air filter paper, oil filter paper and fuel filter paper.

The details of its products as follows:

1. Air Filter Paper:

(1) Grammage (g/m²) :135±5

(2) Thickness (mm) : ≥0.4

(3) Corrugation Depth(mm) : 0.1~0.3

(4) Air Permeability (p=200pa  L/m².s) :≥ 330

(5) Burst Strength (Kpa) :≥ 200

(6) Max Pore Size (µm) : 95

(7) Stiffness(mN.m) : ≥4.0

2. Oil Filter Paper:

(1) Grammage (g/m²) : 135±5

(2) Thickness (mm) : ≥0.4

(3) Corrugation Depth(mm) : 0.1~0.3

(4) Air Permeability (p=200pa  L/m².s) : ≥300

(5) Burst Strength (Kpa) : ≥200

(6) Max Pore Size (µm) : 110

(7) Stiffness(mN.m) : ≥4.0

3. Air/Oil Filter Paper:

(1) Grammage (g/m²) : 135±5

(2) Thickness (mm) : ≥0.4

(3) Corrugation Depth(mm) : 0.1~0.3

(4) Air Permeability (p=200pa  L/m².s) : ≥300

(5) Burst Strength (Kpa) : ≥200

(6) Max Pore Size (µm) : 110

(7) Stiffness(mN.m) : ≥4.0

4. Fuel Filter Paper:

(1) Grammage (g/m²) : 135±5

(2) Thickness (mm) : ≥0.35

(3) Corrugation Depth(mm) : 0.1~0.3

(4) Air Permeability (p=200pa  L/m².s) : ≤160

(5) Burst Strength (Kpa) : ≥300

(6) Max Pore Size (µm) : 70

(7) Stiffness(mN.m) : ≥4.0

Note: the color, size and each specification parameter can be changed as per your requirement.