"This is on the Test! Class 4 Hazardous Materials Handler Textbook + Practice Problems, 3rd Edition" Nomad Works Co., Ltd. / Tokyo Fire Prevention Equipment Maintenance Association Price: ¥1600 #NomadWorksCoLtd #TokyoFirePreventionEquipmentMaintenanceAssociation #TokyoFirePreventionEquipmentMaintenanceAssociation #book #Engineering/Industry/Other I passed the exam in 2023 on the first try, so I'm selling this. It's recommended because it has detailed explanations and easy-to-understand illustrations.