久日新材：近年来光引发剂在3D打印领域中销量稳中有升，尤其在3D打印油墨方面

Group 1 - The company has multiple photoinitiators, such as TPO and 184, that can be used in 3D printing materials [2] - Sales of photoinitiators in the 3D printing sector have been steadily increasing in recent years, particularly in 3D printing inks [2]