iwma.net · greenhouse effect' the popular fire suppression gas hfc227ea, for example, has a...

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Page 1: iwma.net · greenhouse effect' The popular fire suppression gas HFC227ea, for example, has a rating of 3,220, compared to C02's 1
Page 2: iwma.net · greenhouse effect' The popular fire suppression gas HFC227ea, for example, has a rating of 3,220, compared to C02's 1