1.Acid and alkali resistant,
2. corrosion resistant,
3.explosion-proof,
4.large filtering area,
5.waterproof and oilproof,
6.high filtration efficiency,
7.high working volume,
8. high strength,
9.large force,
10high wear resistance,
11. high filtration precision,
12.small running resistance,
13.low friction coefficient,
14.non-sticky powder,
15.moisture resistance,
16.repeatedly washed,
16.improved quality of powder material, etc
