To strengthen the mastery of chemical leakage accident handling skills of personnel in various departments, workshops, warehouses, etc ... To strengthen the mastery of chemical leakage accident handling skills of personnel in various departments, workshops, warehouses, etc ... , Workshop, warehouse and other personnel to master the skills of handling chemical leakage accidents ... To strengthen the staff of various departments, workshops, warehouses and other positions to master the skills of handling chemical leakage accidents ... to strengthen various departments, workshops, warehouses To master the skills of chemical leakage accident handling personnel in other positions ... To strengthen the mastery of chemical leakage accident handling skills in personnel in various departments, workshops, warehouses ... To strengthen the staff in various departments, workshops, warehouses and other positions Mastery of Chemical Leak Accident Handling Skills ...