A water barrier was extruded on the insulation layer of electric cable to improve electric property and to lower the cost.
在电缆绝缘缆芯外挤包一层堵水材料，不仅可改善电缆的电气性能。而且可降低电缆材料的成本。
A water barrier was extruded on the insulation layer of electric cable to improve electric property and to lower the cost.
在电缆绝缘缆芯外挤包一层堵水材料，不仅可改善电缆的电气性能。而且可降低电缆材料的成本。
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