| 摘要 |
PROBLEM TO BE SOLVED: To provide an antifreezing admixture replacing conventional chloride based antifreezing admixture. SOLUTION: The antifreezing admixture uses urea and imparts the antifreezing admixture manifesting the same antifreezing affects compared to conventional admixture using calcium chloride as a main ingredient. COPYRIGHT: (C)2003,JPO
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