产品外壳易生锈腐蚀，影响产品的使用寿命。
Shell easy to rust corrosion products, the impact of product life.
黄铜不易生锈腐蚀，延展性较好，易于加工成各种建筑五金，装饰制品、水暖器材。
Brass is not easy to rust, malleable, easy processing into a variety of architectural hardware, decorative products, plumbing equipment.
防锈油：涂在金属表面，形成保护层，防止金属生锈或腐蚀的油或者油脂类材料。
SLUSHING OIL : Oil or grease-like material used on metals to form a protective coating against rust, corrosion, etc.
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