Making a VACUUM PUMP with your own hands
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VERY RELIABLE VACUUM PUMPS: http://you.erstvak.com/nasos/ =================================
Making a vacuum pump with your own hands from a refrigerator compressor. The tools you will need are a grinder, a welding machine and a drill with an 11 mm drill bit. The manufactured compressor will serve you for at least 4 years, verified by personal experience, is not afraid of caustic vapors, also is not afraid of solvent vapors
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