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| BOC Edwards Also manufactures related gas management supplies and equipment. Manufacturer and supplier of specialty gases mainly to the semiconductor industry. |   |
| Environics The Environics Series 2000 Computerized Multi-Component Gas Mixer(tm) can rapidly and automatically generate multi-component customized precision gas ca. Manufacturer of computerized gas blending, calibration and gas flow management instruments. |   | |
| AirSep Corporation Equipment is sold to the medical industry and industrial manufacturers. This company was capitalized by private investment. Parent/holding company with high-tech units involved in electronics services and manufacturing. |   | |
| Chlorinators, Incorporated The company also manufactures chlorine gas leak detectors and flow packing control valves. Products are sold to multiple industries. This company was capitalized by private investment. Manufacturer of gas chlorinators and sulphonators. |   | |
| Andonian Cryogenics Specialty industrial manufacturer of cryogenic equipment, pumping, including breathing and liquid helium handling supplies. |   | |
| Inweld Corp. Producer of specialty and high-purity gases, liquid mixtures and related process control equipment and supplies. |   | |
| Containment Products Free Containment Products Info From The Business Source. |   | |
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