6万吨/年乙烯法特种聚乙烯醇树脂升级改造项目安装工程1标段和2标段 招标信息
https://ggzy.hefei.gov.cn/jyxx/002001/002001001/20230424/a4d9b485-cba2-4468-9187-99c31aa55c8f.html?ztbtab=002001008
https://ggzy.hefei.gov.cn/jyxx/002001/002001001/20230424/7313aec4-9a69-46eb-ae1a-4405ce34b83c.html