Remove and replace the o - ring and gasket.

拆卸和重新安装O形环和垫圈.

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Remove and replace worn components and reactivate system.

移除和更换磨损部件和恢复系统.

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Remove and replace valve balls.

卸下阀球并更换.

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Remove and replace valve seats.

卸下阀座并更换.

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Remove and replace the O ring and gasket.

拆卸和更换O形环和垫圈.

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