►1. Electroplating Cr decoration coating with Cr(III) plating liquid (CN200610042897.x ) 

►2. Electroplating Cr antiwear coating with Cr(III) as source (CN200610042898.4 ) 

►3. Electroplating Cr-P alloy antiwear coating with Cr(III) as source (CN200710308577.9 )

►4. Electroplating Cr-matrix composite antiwear coating with Cr(III) as source (CN200710308580.0 )

►5. A method of depositing DLC film on steel substrate (CN200710308579.8 )

►6. A method of depositing lubricating film on automobile bearing bush (CN200610104992.8)

►7. A method of preparating fullerene like structure DLC films (CN200710308591.9)

►8. A method of nanocomposit films with low friction and long life (CN200710307721.7) 

►9. Preparation of nanocrystalline Co with excellent adhesive wear resistance (CN200610119795.3)