Emerson艾默生ZZER12低温热力膨胀阀R22

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

Emerson艾默生ZZER34低温热力膨胀阀R23

Emerson艾默生ZZC3-1/2低温热力膨胀阀R404A/R507

Emerson艾默生ZZC5低温热力膨胀阀R404A/R507

Emerson艾默生ZZER11低温热力膨胀阀R404A/R507

Emerson艾默生ZZER13低温热力膨胀阀R404A/R507

Emerson艾默生ZZER18低温热力膨胀阀R404A/R507

Emerson艾默生ZZER20低温热力膨胀阀R404A/R507

Emerson艾默生ZZIR29低温热力膨胀阀R404A/R507