膨胀阀功能元件，利用感温介质热胀冷缩的性能传动推杆来控制阀件的开关。
Expansion valve function components, the use of heat medium heat bilges cold shrink the performance of the transmission of push rod to control valve switch.
膨胀阀功能元件，利用感温介质热胀冷缩的性能传动推杆来控制阀件的开关。
Expansion valve function components, the use of heat medium heat bilges cold shrink the performance of the transmission of push rod to control valve switch.
