Magnetic Gear Pump beed used to transfer many kind of oil and chemical liquid. pump have cast iron and stainless steel two kind of material. cast iron material pump also be used to transfer the lubricating oil, diesel fuel oil, engine oil etc oil. stainless steel material pump usually be used to transfer food grade oil or corrosive oil. pump with magnetic seal (magnetic seal) will have no leakage, more hygienic and safe. It's widely used in the food and chemical industries. it's a hot sales pump.