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Argon (7)CAS RN:7440-37-1
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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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BASF Japan Ltd.Telephone:81-3 3238 2500
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BASF Japan Ltd. Chemicals Div. Organic Chemicals Gr.Telephone:81- 3 3238 2482
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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