double-stage ammonia refrigerating machine set
IS系列属于单极单吸式离心泵 SH是双吸离心泵 DA是多级离心泵 double-stage ammonia refrigerating machine set双级氨制冷机组 double-stage compressor双级压缩机 ..
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stage ammonia refrigerating machine set
...ne 氨吸收式制冷机 stage ammonia refrigerating machine set 双级氨制冷机组 double-stage ammonia refrigerating machine set 双级氨制冷机组 ..
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