... 60HzFrequency: 42,000 HzPower: 35WSwitch: 3-1 minutes adjustableDimensions: 20 × 14 × 12.5cmPacking size: 24.5 × 17.5 × 16.5 ... :1, the family applied: daily use items such as gold and silver jewelry, jewelry, hair accessories, brooch, glasses, watch chain, pen, CD, ... etc., all the world the truth filling completely.3, jade, jewelry processing industry: the grinding and polishing process, a lot of ...