Double rings umbrella aerator 双环伞型曝气器
We produce high quality gold umbrella, 30 windproof golf umbrella, fiberglass frame, pongee double canopies, EVA handle.
我们生产高质量的黄金伞，30“防风高尔夫伞，玻璃纤维内，茧绸双檐篷，长荣处理。
The double-umbrella insulator has the advantages of improving the pollution-resistance performance of the insulator and increasing the creepage distance.
这种双伞绝缘子的优点是改善绝缘子的耐污秽性能，增加爬电距离。
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