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Copyright£ºshandong tongtai group corporation Copyright @ 2017 All Rights Reservrd Address£ºNo. 189, Liaocheng Road, Shandong, Rizhao City   Telephone£º+86-0633-8285253¡¡8286807 Fax£º0633-8285655   Email£º[email protected] ¡¡ [email protected]¡¡ Tongtai pump industry£º0633£­8285027/8286808 Tongtai Grain£º0633£­8285575/8285648 Pressure vessel£º0633£­8285027/82868088  Low voltage electrical apparatus£º0633£­8286857