A zinc coating is applied to the steel for rust protection.

镀锌层是用来防止钢铁生锈的。

Its properties also provide rust protection for steel surfaces and other oxidizable metals.

其性质也针对铁及其他易氧化金属表面提供防锈保护。

It also serves and a rust protection coating on steel and other oxidizable metals.

也可用于钢铁和其他易氧化金属表面作为防锈涂料。