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The product line of HZHCF covered filter fabrics, dedusting fabrics, filter bags, and screen mesh, and there are many different products under each category, so to help you choice a product which meets you requirements is very important.

For liquid filtration, you can make your choice by considering following aspects:

1. The type and dimension of the filter that our filter fabrics will be used in
2. The application - the environment (including the temperature, the PH value, etc.)
3. Your other requirements

For air filtration, you can make your choice by considering following aspects:
1. Dust removal efficiency
2. Air permeation
3. Easy dust removal
4. Long service life

Below is a sheet listed the chemistry characters of each fiber, it should be helpful for you:

Properies Polyester Fiber Polyproylene Fiber Polyamide Fiber Polyvinyl Alcohol Fiber
Acid-resisting Strong All Right Weak Non-acid resisting soda
Alkalinity-resisting Weakness-resisting Strong All Right Weakness-resisting
Corrosion-resisting All Right Bad Bad All Right
Electrification Bad All Right Good Normal 
Splitting and elongation 30%-40% Better than polyester 18 -45 15%-25%
Return Ability Very Good A little better than Polyester Very Good Weak
Abrasion Resistance Very Good Good Very Good Good
Heat-resisting 120 90 130 a little Contraction 100 a little Contraction
Softening-resisting 230-240 140-150 180 200
Melting-point 255-265 165-170 210-215 220