solid-core insulator 实心绝缘子

solid-core post insulator 实心棒形绝缘子

anti-pollution solid-core post insulator 防污型实心支柱绝缘子

core post insulator 实心棒形绝缘子

Insulator core rod 绝缘子芯棒

composite insulator core 复合绝缘子芯棒

core of an insulator 绝缘子的杆体

composite insulator core rod 复合绝缘子芯棒

solid-core e post insulator 实心棒形绝缘子

porcelain-core composite rod insulator 悬式瓷复合绝缘子