士豪棋牌

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                          1. 第十四届中国(北京)国际冶金工业展览会
                            The 14th China (Beijing) International Metallurgical Industry Expo

                            2020.10.14-16   中国国际展览中心(新馆)
                            展会掠影
                            知名展商
                            媒体支持

                            北京海闻展览有限公司
                            北京市石景山区石景山路乙18号院万达广场C座1709

                             

                            86-10-68659227/9226


                            技术支持:

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