There is obviously on the steel ball function anti-rust protection.
对碳钢球有明显的保护防锈功能。
Anti rust oil is used on strip surface as protection from rust.
反对的锈油当做来自锈的保护在分带表面上被用。
Its advantages are: anti-condensation, overheating, rust and corrosion, the protection of all cooling system metal surfaces, including aluminum parts.
其优点是：防凝结、过热、生锈和腐蚀，保护制冷系统的所有金属表面，包括铝制零件。
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