R449C组成成分
摩尔百分比:R32占34.73%, R125占15.05%, R1234yf占24.55%, R134a占25.67%
质量百分比:R32占20%,R125占20%,R134a占29%,R1234yf占31%
包装规格:5kg、10kg、吨装 。
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