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1、immunitry of insulation on the voltage

2、asymetry of resistance in electrical wiring

3、radius of  bending during maintance

1、immunitry of insulation on the voltage絕緣耐壓性能

2、asymetry of resistance in electrical wiring 導體線芯的電阻

3、radius of  bending during maintance 安裝時彎曲半徑