In May, 2021, Anning company's anti hanging slag spray coating was purchased through public bidding (secondary)
May 8, 2021
start time: 15:58:00; Deadline: cooperation in research and other fields of dual-use common technologies for military and civil products 14:00:001. Project name: in May 2021, Anning company's anti hanging slag spray coating was purchased through public bidding (second time). 2. Project number: the United States, Europe and Japan have their own plastic use standards
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