Talk:Ultrasonic cleaning

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I have cleaned up the text, added some everyday instances where a reader may observe these devices at work, and given a general description of the way in which they are used. Reverted to a single US$ price (that seems to be the first one written, and exchange rates and profit margins vary) and coupled the price to a specific year. To my mind, this remains a stub. Things which I can think of being added include: Which kind of materials can or cannot be cleaned (limitations)? What cleaning fuids are used, and why? What are the advantages and disadvantages compared with other methods of cleaning? What are the precautions, dangers or risks involved (e.g. from ultrasound or from the fluids used)? Seejyb 21:12, 14 November 2006 (UTC)