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LND (Popularity:  )
http://www.lndinc.com/
Designers and manufacturers of nuclear radiation detectors including ionization chambers, Geiger-Mueller tubes, X-ray proportional counters and neutron detectors.
Category:
Science - Instruments and Supplies - Laboratory Equipment - Radiation Measurement
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Chemgas (Popularity: )
http://www.helium-3.com
Provides isotopic noble gases and laser gas mixtures.
Category:
Business - Chemicals - Basic Chemicals - Gases
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