Li Changzheng, an expert in refining and chemical technology of Baling Petrochemical, led the team to carry out scientific research on new medical materials, and developed a number of brands of new medical materials products since 2020. This kind of product has good biodegradability, biocompatibility and shape memory characteristics. It is mainly used in the field of medical and degradable materials, and can also be used in 3D printing consumables, children's homemade toys, shoes and so on. Photo shows Li Changzheng (left) and his colleagues discussing the continuous optimization and improvement of new medical materials products on Jan 11.