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![]() 2008 Qingzhou Hongyuan Packaging Color Printing Co., Ltd. was formally established, focusing on plastic packaging color printing 2012 The process technology of iron-clad film was studied 2015 The purification workshop reached the 100,000-level purification standard 2018 A design department was established to provide one-stop service of design, plate making and after-sales 2020 Automatic testing equipment, 12-color printing machine, and octagonal sealing bag making machine were introduced 2023 Expand the company's construction Our Factory Qin... [Detail] |