It is for water filtration and liquid separation and concentration. The hollow fiber material is PS, PES and PVDF as usaual. Detailed Description Model:4020, 4040, 6040, 6050, 8040Hollow fiber: PSID: 0.7, 0.8, 1.0;OD:1.1, 1.2, 1.4mmMax pressure: 0.4MpaOperating pressure: 0.1-0.2MpaBackwashing...