denmark, holland, sweden, germany and austria, have the most detailed guidelines of the 12 countries.

How would the previous sentence be correctly capitalized?
Answer: Denmark, Holland, Sweden, Germany and Austria, have the most detailed guidelines of the 12 countries.
the efficient temperature control system avoids fluctuations, thus saving on fuel

How would the previous sentence be correctly capitalized?
Answer: The efficient temperature control system avoids fluctuations, thus saving on fuel
it is best to use a larger scarifier several times on larger areas.

How would the previous sentence be correctly capitalized?
Answer: It is best to use a larger scarifier several times on larger areas.
the variable barbell stand is multiple adjustable in width and height. the taurus barbell rack pro is suitable for exercises in standing position or in combination with a weight bench.

How would the previous sentence be correctly capitalized?
Answer: The variable barbell stand is multiple adjustable in width and height. The Taurus barbell rack Pro is suitable for exercises in standing position or in combination with a weight bench.