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HuaZheng HZ-2000H capacitance and dissipation factor measuring instrument transformer tan delta tester dielectric loss factor tester
Huazheng 10kv multiple function dissipation factor meter capacitance 4 channel transformer tan delta tester
Huazheng HZ-2000F Transformer Tan Delta Tester Dielectric Capacitance Dissipation Test Machine Transformer Tan Delta Analysis Machine