... chemical, environment protect ,water, construction,factory,pharmaceutical,metallurgy,and so on. chemical pump IHF type fluorine plastic chemical pumpIHF Fluoroplastic Alloy Pumps1 ... integrated sintering and pressure molding of metal insert and Fluor plastic housing, shaft seal is sealed by external bellow mechanical seal ... pressure4.5-87m rotate speed: 1450-2900r/min IHF fluorine plastic pump