Yash High Voltage Ltd. is a fast emerging Indian leader in power engineering and specialized high voltage and high current Transformer Bushings for utilities and the industrial markets in India and around the globe. https://yashhv.com/
RIP transformer bushings are oil-free transformer bushings with a condenser control and a solid active component composed of paper saturated with resin. Both a silicone composite material and a porcelain variant of the air side housing are offered. This dry-filled bushing is made to withstand rated voltages and currents of up to 1200 kV and 6000 A, respectively.

https://yashhighvoltage.edublogs.org/2023/01/21/resin-impregnated-transformer-bushings-rip-bushing-yash-highvoltage/
It should be mentioned that a transformer's bushing, which is crucial to its effective operation, is one of its most significant parts. A transformer cannot be operated in any high-voltage situation without a bushing (typically in KV).

http://bushing-of-transformer.populr.me/transformer-bushing