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Re: 2020 - R-1234yf Leak Detection - 5% Hydrogen/95% Nitrogen
Posted to HVAC Forum on 5/27/2020 3 Replies

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If one is flammable and one is not, they are different. If one damages the environment more than the other, they are different. If Sam and Bob wear the same color shirt, but the materials are differe... Login to read more.

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