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    • 18¡¢Separation device for polyester alcohol products in dimethyl carbonate production by ester exchange method£¨ZL201922073896.7£©
    Visits£º2709  Add time£º2020/10/18 10:03:27
    Copyright£ºCopyright©2009-2018 Tangshan Haoyu Science and Technology Development Co., Ltd. All Rights Reserved.
    address£ºNo. 905-1, 3rd floor, Junxinli Central Plaza, North District of Tangshan Road, Hebei Province
    Record No.£º Ji ICP 14012089-1
    Telephone£º13903150875