Funtions:
1. Cleaning and meantenance;
2. Improve the effiency;
3. Improve the lubrication;
4. Reduce friction;
5. Prevent water seepage.
Superiority:
1. Reduce costs of maintenance;
2. Protect machinery and equipment from corrosion and oxidation;
3. Great stability;
4. Water-resistance ability for improve water pollution resistance.