"U-Can's Quick Study Lesson for Class 4 Hazardous Materials Handler, 5th Edition" U-Can Hazardous Materials Handler Examination Research Group / U-Can Hazardous Materials Handler Examination Research Group Price: ¥1600 There are no markings, but it was carried around in a bag, so there is some creasing, especially at the top and bottom of the pages. If you don't mind, please consider purchasing. #U-CanHazardousMaterialsHandlerExaminationResearchGroup #U-CanHazardousMaterialsHandlerExaminationResearchGroup #book #nature/chemistry