| 摘要 |
PURPOSE: A torch coolant composition is provided to prevent freezing of coolant in winter as well as settling of impurities. CONSTITUTION: The torch coolant composition comprises 59.5-79.5wt.% of water, 20-40wt.% of glycol selected from ethylene glycol and propylene glycol, 0.5wt.% of benzotriazole serving as anti-corrosion agent.
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