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制冷剂产品种类：R11、R12、R13、R14、R21、R22、R23、R113、R114、R123、R124、
R125、R134A、R141B、R142B、R152A、R290、R404A、R407C、R408A、R409A、R410A、
R415B、R417A、R502、R503、R507、R508B、R600A等制冷剂及超低温制冷剂......
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