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Question:
In what year will R-409A cease to be produced in the United States?
a) 2010
b) 2015
c) 2020
d) 2525
Answer:
c) 2020
Publication date: 04/02/2001
a) 2010
b) 2015
c) 2020
d) 2525
Publication date: 04/02/2001
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