Electrical engineering and Electric apparatus;

　　Turbine;

　　Shock absorber;

　　Power generator;

　　Cushioning device;

　　Pressure reducing valve;

　　Automatic transmission;

　　Compensation device for high tension cable;

　　Stripping attachment at the top of a mould;

　　Extreme-torsion cluth;

　　Pipeline’s hanger supporter;

　　Pump and valve in petrochemistry;

　　Sonar checking and measuring system.