... 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, ... to corrupt3. The stronge cleaning ability: BJ-205’s KB value is 137, tetrachloroethylene’s is ... machine use Freon before, Pls use BJ-205 to clean the machine before cleaning something use ...