Ultrasonic Cleaner (1) Lowest back-repair rate (2) Safe (3) 3L,4L,5L,6L,10L,22L, ... big ultrasonic cleaner equipment OEM. Ultrasonic Cleaner:(1) Lowest back-repair rate(2) Safe(3) 3L,4L,5L,6L,10L,22L ... inuse in most jewelry workshops, watchmakers establishments, or in electronic repair workshops (where it could beused for cleaning an electronic device ...