... in ultrasonic cleaning machine 1. Stronge stability: BJ-205 have unique stable component, after dsitil callback ... of trichloroethane,tetrachloroethylene.2. No Corrosive: BJ-205 is a litmusless and non-polar solvent ... equipment to corrupt3. The stronge cleaning ability: BJ-205’s KB value is 137, tetrachloroethylene’ ... the machine use Freon before, Pls use BJ-205 to clean the machine before cleaning ...