±We Hebei Amusen Filter Paper Co.,Ltd was founded in 2000, with more than 14 years of expeirence in this field, we are now one of the biggest filter paper manufacturers in China,
We are specialising in manufacturing all types of filter paper, main products are air/oil/fuel fitler paper,crepe filter paper,combine filter paper,by pass filter paper,non flame filter paper and more special filter paper.
Herewith the specifications of by pass filter paper for your reference.
Basic weight before cured |
130±5 | g |
after cured | 120±6 | g |
Thickness before cured | 0.45±0.05 | mm |
after cured | 0.45±0.05 | mm |
Air permeability | 170±20 | l/sqm*sec |
Max pore siz | 45±7 | um |
Mean pore size | 38±5 | um |
Burst strength before cured | above 145 | kpa |
after cured | above 300 | kpa |
Stiffness before cured | 3±1 | mn*m |
after cured | 6±1 | mn* |
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