Livestock and poultry breeding: Dehydration treatment of pig manure, cow manure, and chicken manure to reduce COD content using a spiral extrusion separator. Municipal/industrial sewage treatment: sludge dewatering, sewage treatment plant sludge water treatment, paint mist wastewater filtration belt filter press, centrifuge, candle filter. Petrochemical industry: catalyst recovery, DMC/EMC material filtration, drilling fluid purification closed filter, settling centrifuge. Food and beverage: fruit juice clarification, distiller's grains/vinegar residue dehydration, fruit glucose syrup decolorization filtration candle filter, screw extruder. Biopharmaceuticals: Fermentation broth filtration, antibiotic/amino acid purification rotary pressure filter, tube centrifuge.