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 | ... RETHYLENE ... (8 elements)en (3) : PERCHLORETHYLENE · TETRACHLORETHYLENE · TRICHLORETHYLENE fr (5) : PERCHLORETHYLENE · TETRACHLORETHYLENE · TRICHLORETHYLENE · TRICHLORETHYLENES |
 | ... ETHYLENE ... (133 elements) ETHYLENE · HYDROXYETHYLENE · OXYETHYLENE · POLYETHYLENE · POLYETHYLENEGLYCOLS · POLYETHYLENEIMINE · POLYETHYLENEOXIDE · POLYETHYLENES · POLYOXYETHYLENE · POLYOXYETHYLENES ... RETHYLEN ... (11 elements) PERCHLORETHYLENE · POLYCHLORTRIFLUORETHYLEN · POLYTETRAFLUORETHYLEN · TETRACHLORETHYLENE · TETRAFLUORETHYLEN · TRICHLORETHYLENE · TRICHLORETHYLENES |
 | ... ORETHYLENE ... (8 elements) PERCHLORETHYLENE · TETRACHLORETHYLENE · TRICHLORETHYLENE · TRICHLORETHYLENES ... RETHYLENES ... (1 element) TRICHLORETHYLENES |