... mainly producing refrigeration units). It also has branch companies in Shanghai, Guangzhou, Shenyang, Hefei, Wuhan, Changzhou etc. Our two ... NJ-BF4.0Z, NJ-BF5.0Z:Copeland semi-hermetic piston compressor, oil separators, air-cooled condenser, axial flow fan, liquid ... BF10Z, NJ-BF20Z, NJ-BF25Z:Copeland semi-hermetic piston compressor, oil separators, air-cooled condenser, axial flow fan, liquid reservoir ...