●　Can etch samples with acid in the range of 10C to 250C;

●　Etching copper wire samples at low temperatures results in extremely low damage to the copper wire;

●　Can use fuming nitric acid, fuming sulfuric acid, or mixed acids;

●　Acid and waste acid are stored in standardized acid bottles;

●　The microprocessor controller can store up to 100 sets of programs;

●　The device is compact and only requires a small space for placement;

●　Fast temperature rise and fall time, switching between nitric acid and sulfuric acid only requires