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  • Application field
    Construction Equipment
    Shipbuilding industry
    Factory equipment
    Water treatment
    Nuclear ball valve
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    Corporate culture

    TOP MECHANICAL&ELECTRICAL(SHANGHAI)CO., LTD & Electrical & Dongyi valve (TOP) implied a spirit of perseverance and perseverance. After more than 10 years of hard work and perseverance, the valve has gone out of a way of its own and extraordinary development.