1. series electrodialysis or ion-exchange water-purifying facilities
2. PSZ series acid liquor-dosing and cooling facilities
3. KE series lead particles-purifying system for smoke dust
4. ZPY series lead-acid waste water treatment facility
5. PST series acid-mist treatment facility
6. DMC-co pulsed jet cloth filter
7. ZC-co reverse-flat bagho
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