382751000020
HS 382751000020 - R508B (containing 54% hexafluoroethane (perfluoroethane) (PFC-116) and 46% trifluoromethane (fluoroform) (HFC-23))
R508B (containing 54% hexafluoroethane (perfluoroethane) (PFC-116) and 46% trifluoromethane (fluoroform) (HFC-23))
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