阀门在制造和组装过程中，没有暴露在含硅酮的环境中。

Valves are manufactured and assembled without exposure to silicone compounds.

youdao

阀门在制造和组装过程中，没有暴露在含硅酮的环境中。

Valves are manufactured and assembled without exposure to silicone compounds.

youdao