1. Lubrication gear does not harm the metal being lubricated, and the lubrication gear itself does not wear. 2. Lubrication gear can be manufactured according to the lubrication object into a variety of modules and teeth. 3. A number of lubricant holes can be opened in certain parts of the lubrication gear. 4. Aluminum gear features: patented FU Foam material, very special, not aging, not clogging, not wear. 5. New lubrication gear features: new polyurethane composite materials, with high streng