Seller notes

HomePaymentReturn PolicyAbout usContact us Details【Function principle】 After vacuuming, add enough fluorescent agent to mix with refrigeration oil in the air conditioning system. Then add snow seeds. When the refrigerant leaks at the leak point, the fluorescent agent will also leak. When blue light shines on the golden fluorescent agent, it will show a bright golden yellow. 【No fluorescence is displayed, or the reason is very faint】 1: The system has no leakage 2: Insufficient use of flu...

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