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1 ene 1987 año - Montreal Protocol

Descripción:

Montreal Protocol signed to ensure the safety of the earth's ozone layer is signed in Montreal, Canada. The Protocol establishes international cooperation on the phase out of all ozone depleting substances, including the chlorofluorocarbon(CFC) refrigerants which have been used in HVAC equipment.

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Modern AC history

ByTrueMeep
11 mar 2020
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fecha:

1 ene 1987 año
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~ 38 years ago
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