According to the survey, more than 70% of the vehicle cooling system scale and rust to have seriously affected the function of the cooling system heat up!
据调查，70%以上的汽车冷却系统生有水垢和铁锈，严重影响冷却系统散热功能高达！
Thoroughly clean all metal surfaces of all rust; scale, grease, rough spots and other foreign matter, which may prevent proper paint adhesion.
彻底清除所有金属表面的锈迹，污垢，油脂，糙点，及其他防止油漆附着效果的杂质。
A scale of rust covered the steel plate.
一层铁锈覆盖了钢板。
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