< / p > < p class = "p0" style = "text - text-indent: 21.75 pt;" > ultrasonic cleaner < / p > < p class = "p0" style = "text - text-indent: 21.75 pt;" > < / p > < p class = "p0" style = "text - text-indent: 21.75 pt;" > < / p > < p class = "p0" style = "text - text-indent: 21.75 pt;" > And the cleaning method adopted by the ultrasonic cleaner is distinctive, in which no chemical elements are produced, It will not contaminate the tableware ,