Emerson艾默生ZZER18低温热力膨胀阀R22
Emerson艾默生ZZER21低温热力膨胀阀R22
Emerson艾默生ZZIR30低温热力膨胀阀R22
Emerson艾默生ZZC1低温热力膨胀阀R23
Emerson艾默生ZZC2-1/2低温热力膨胀阀R23
Emerson艾默生ZZC4低温热力膨胀阀R23
Emerson艾默生ZZC6低温热力膨胀阀R23
Emerson艾默生ZZC9低温热力膨胀阀R23
Emerson艾默生ZZC13低温热力膨胀阀R23
Emerson艾默生ZZJR16低温热力膨胀阀R23
Emerson艾默生ZZER20低温热力膨胀阀R23
Emerson艾默生ZZER21低温热力膨胀阀R23