The phrase "a key production" is correct and usable in written English.
It can be used to refer to an important or significant production in various contexts, such as theater, film, or manufacturing.
Example: "The director emphasized that this is a key production for the theater company, showcasing their best talent and creativity."
Alternatives: "a crucial production" or "an essential production".
It is also highly recyclable – scrap glass, cullet, is a key production ingredient for new glass.
Meyerhold's staging of Molière's Dom Juan (1910) was a key production in the process of "retheatricalizing" the theatre.
The US provided more than $20bn a year in national subsidies alone and, in Alaska, a key production subsidy is set to pay out $442m more of taxpayers' money than it will raise in 2015 and 2016.
It was a move that wouldn't surprise London's cutting-edge cadre of brewers: spilling from the southern banks of the River Thames with a western border informally marked by the Tower Bridge, Bermondsey historically was such a key production centre for food and beverage that, by the mid-19th Century, it had been dubbed "London's Larder".
The mountains around Iguala are a key production zone for opium paste and heroin.
The liver is also a key production site for coagulation and complement proteolytic cascade components, mediators of blood clotting and elements of the innate immune system.
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The Key Production Company, an explorer and producer of oil and gas, agreed to buy a rival, Columbus Energy, for $22.7 million.
The project's intention, she said, was to put the region on an "equal footing with other key production UK centres," and that it would help boost Yorkshire's "burgeoning film and TV infrastructure".
More recently the theater provided a key development production for the musical "Next to Normal" shortly before it moved to Broadway in 2009).
Phones are also playing key production roles.
