... 1.24 hours continuous work 2.automatic constant temperature system 3.Stainless steel , durable Industrial Single trough Ultrasonic Cleaner1, Uses: Single ... and glassware, etc. over filter cleaning.2, Features: 1, all imports of thick stainless steel acid and alkali, ... 40 KHZ, 68KHZ, 80KHZ, 170KHZ, 1000KHZ, better.7, single-frequency, dual-, tri-band adjustment, to meet different requirements;8 ...