Flange facing finish shall be serrated finish in accordance with applied standard in case of soft gasket.

当用软垫片的时候，法兰密封面要按相应标准加工成水线。

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Flange facing finish shall be serrated finish in accordance with applied standard in case of soft gasket.

当用软垫片的时候，法兰密封面要按相应标准加工成水线。

youdao