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GB/T 12706.1-2002 额定电压1 kV(Um=1.2 kV)到35 kV(Um=40.5 kV)挤包绝缘电力电缆及附件 第1部分:额定电压1 kV(Um=1.2 kV)和3 kV(Um=3.6 kV)电缆 |
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