Lub ntsuas dej Ultrasonic tuaj yeem ntsia tau kab rov tav lossis ntsug yam tsis cuam tshuam nws qhov tseeb thiab muaj rau cov dej txias hauv tsev (T50 ℃) thiab cov dej kub hauv tsev (T70 ℃) cov kev pabcuam hauv 15, 20, thiab 25 mm diameters.
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