The surface is brick red nonflammable coating and indicate a white ring at the behind of the precision color ring.

涂漆颜色为砖红色不燃性面漆，精度色环后增加白色环表示。

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The surface is brick red nonflammable coating and indicate a white ring at the behind of the precision color ring.

涂漆颜色为砖红色不燃性面漆，精度色环后增加白色环表示。

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