EMERSON艾默生热泵水源热力膨胀阀 TRAE+20HCAEX4-I21 PCN:800615
EX5-U21 PCN:800618
EX6-M21 PCN:800621
EX7-M21 PCN:800625
EX8-U21 PCN:800630
EX4-U31 PCN:800617
EX6-I31 PCN:800622
EX7-U31 PCN:800626
EC2-552 PCN:807738
ECX-N60 PCN:804422
FSP-180 PCN:800373
FSP-L15 PCN:804693
FSP-L30 PCN:804694