<UL><LI>Stainless steel (SUS304) used for all exterior metal parts</LI><LI>Standard water resistant scraper prevents liquid leakage into the cylinder</LI><LI>2 types of sealing material - choices of NBR/FKM (nitrile rubber/fluoro rubber)</LI><LI>Uses grease for food processing machines - meets FDA standards</LI><LI>Water-resistant auto switch is available</LI></UL>