| 摘要 |
An insulator assembly (10) comprising an insulator (12) with a lower part having a mounting bushing (22, 104, 116) sealingly mounted thereon. The bushing (22, 104, 116) being provided with a cylindrica l body (28, 106, 118) which is locatable over the groove (18), and can be shaped during manufacture to sealingly engage in the groove (18) by a spinning technique.
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