Is Dongfeng Huimen (Shiyan) piston original?

Yes, according to official website of Dongfeng Company, the piston of Dongfeng Federal Gate is original. DongfengMotorCorporation (English name: Dongfeng Motor Corporation) is a limited liability company established by the state. The State-owned Assets Supervision and Administration Commission of the State Council is an institution that fulfills the obligations of investors. Perform the investor's duties on behalf of the State Council according to laws, administrative regulations and the authorization of the State Council.