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The surface coated special insulation material, good electrical performance, strong moisture resistance.
外表涂特种绝缘材料，电气性能好，防潮能力强。
youdao
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The surface coated special insulation material, good electrical performance, strong moisture resistance.
外表涂特种绝缘材料，电气性能好，防潮能力强。
youdao