About the compressor package, we usually put one piece compressor in an individual box, the box size 28*25*25 cm; every compressor is wrapped by plastic film, then put into a box.
Usually 4 piece compressor is in a big carton;
If ship by sea, one pallets can contains about 100 pieces compressor, which is 25 big carton, and its size about 2CBM.
Details procedure pictures :
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