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Posted by jorge hernandez on July 19, 2002 at 17:08:26:
to whom it may concern:i am a power engineer holding a second class engineer's license for steam/refrigeration(1b/2b)on the state of new jersey.i am currently looking for material related to ammonia(r-717,nh3) refigeration.could be books,math questions,essay questions,or any other information that would allow me to prepare for this examination.
your time,experience and kindness would be greatly apreciated.
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