The whole control mechanism and actuation shall be of the same manufacturer and mounted inside a totally enclosed casing for protection against airbone contamination and to ensure unique reliablility.
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I would have used from rather than of, but this of is the possessive of : the same manufacturer's control mechanism and actuation .
— Mister Micawber
I would have used from rather than of, but this of is the possessive of : the same manufacturer's control mechanism and actuation .
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