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Oxygen (7)CAS RN:7782-44-7;132259-10-0
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Mitsui Chemicals, Inc.Telephone:+81-3-62532100
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Nippon Steel Chemical Co.Telephone:81-3-5759-2741
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Nippon Sanso Corp.Telephone:81-3-3581-8200
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Nakajima Kagaku Sangyo Co.Telephone:81- 52 561 4595
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JAPAN AIR GASESTelephone:
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KOATSU GAS KOGYO CO. LTD.Telephone:06-6311-1361
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Toho Acetylene Co., Ltd.Telephone:03-3274-1011