The sealing ring by a similar to the rubber or plastic non-metallic materials.

该密封圈由一种类似于橡胶或塑料的非金属材料制成。

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The sealing ring by a similar to the rubber or plastic non-metallic materials.

该密封圈由一种类似于橡胶或塑料的非金属材料制成。

youdao