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Cleaning products: hard disk components
Main cleaning material: particle attachments, oil, water, etc.

Technical difficulties:
1 the use of conventional ultrasound may damage the hard drive
2 product cleaning uniformity requirements
Solution method:
1 using multi-stage cleaning process
2 high frequency ultrasonic cleaning
Test method:
LPC test method is generally used to detect the number of particles, and the application of the system can be very effective in the removal of particles.