Whhdgc is a qualified Hi-tech company. WHHDGC has a strong R&D team form by Doctoral supervisor, Professor senior engineer, Doctor and master. 
Whhdgc mainly product the lead acid battery or other DC power system test instrument.WHHDGC focus on electric instruments, including battery discharger\battery charger\battery charger&discharger complex tester\battery activator\battery resistance tester\battery load tester and SF6 gas analyzer, insulatio0n resistance tester....