This contract comes into force from the day of execution by buyer and builder .

本合同自买方和建造方签署之日生效。

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This Contract shall come into effect commencing as of the Date of Execution.

本合同自双方授权代表签署之日起生效。

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This Contract shall come into effect commencing as of the Date of Execution.

本合同自双方授权代表签署之日起生效。

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