Haileystdd9151 Haileystdd9151
  • 04-02-2024
  • Chemistry
contestada

HCFC ban will extend to all HCFCs for use in new systems will effect from which year:
a) January 1, 2015
b) January 1, 2020
c) January 1, 2018
d) January 1, 2018

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