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Ethylenediaminetetraacetic acid (4)CAS RN:60-00-4
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Shinwon Chemical & Trading Corp.Telephone:+82-2- 87701067
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Tongsuh Petrochemical Corp., LtdTelephone:(052)259-7617~7620
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Hanwha CorporationTelephone: 82-2-729-3529
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CR International Co., Ltd.Telephone:82 - 2 - 3255300