A.R134 B.R134a C.R143a D.R152a
A.聚砜 B.聚醚砜 C.聚偏氟乙烯
A.1600 B.1200 C.10000 D.11800
A.PAM B.消油剂 C.营养盐 D.消毒剂
A.95% B.90% C.98% D.85%
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