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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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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