⒉Total water supply filtration system for catering, textile, mining, electronics and foundry industries.
⒊Water filtration for nozzles in pulping and papermaking, metallurgy and machinery industries.
⒋General circulating water filtration in food, power, mining, and smelting industries.
⒌Pharmaceutical, petrochemical oil refining, air conditioning system or heating system cooling tower circulating water filtration.
⒍Ion exchange pretreatment of sewage in petrochemical industry, electromechanical industry and medicine.