... without steps. 2. Widely used in medical machinery, fine chemicals, water treatment printing, cleaning, packaging, food processing, and other areas ... freezing) 6. Working way: continuous working 7. Apply the media of: acid and alkali, salt, organic solvents, oils.8. Lifetime above 6000hoursDimension ... /4”Note: MG312XK "12" means the gear of the pump with the height of 12mm, "17" means 17mm.OEM and ODM ...