是空调器的冷、暖换向阀的关键部件,四通阀上的各铜管与阀体、各铜管与其上的毛细管及毛细管与支架都是通过自动火焰钎焊连接。
It is a key component of the cold and warm reversing valve of the air conditioner. The copper pipes and the valve body on the four-way valve, the copper pipes and the capillary tubes, and the capillary tubes and the brackets are all connected by automatic flame brazing.