Back to the original question...

I do not know what those are.

But in aerospace, pretty much any individual part that is uniquely red, is a "remove before flight" item.

Below is a photo of a rollout, in French Guyana, which does not have the red "buckets". The nozzles are not red, they have red covers, for example (same for U.S. Saturn stages for transport, at least before stack assembly).



The "Soyuz" launch vehicle, is mostly the same booster, originally created in the mid 1950's as an ICBM, that launched Sputnik-1, many other satellites, Vostok, Voskhod, and of course Soyuz. The main upgrades were for upper stages.

Anyway, the first stage steering is interesting. The five "engines" have four main chambers each, which do not gimbal. The outer boosters have two small vernier engines that gimbal, and the center core had eight verniers that gimbal., for steering.

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