EMERSON单向阀 止逆阀 精密空调延长组件ACK 8 10 12 14 18
EMERSON艾默生单向阀 止逆阀 精密空调延长组件ACK 8 10 12 14 18
议价-EMERSON艾默生单向阀止逆阀精密空调延长组件ACK81012
精密空调制冷延长组件膜片式单向阀 止逆阀 止回阀10 28 16 22 mm