Children science

Colorful Office Thinking Hand Boiler Glass Science Energy Transfer Children Science Experiment Love Birds Color Meter Hand Boiler 3 Pcs (Red&Blue&Purple) By C&H.Hand Boilers are looped

Colorful Office Thinking Hand Boiler Glass Science Energy Transfer Children Science Experiment Love Birds Color Meter Hand Boiler 2 Pcs (Gree&Blue) By C&H.Hand Boilers are looped

Colorful Office Thinking Hand Boiler Glass Science Energy Transfer Children Science Experiment Love Birds Color Meter Hand Boiler (Purple) By C&H.Hand Boilers are looped

Colorful Office Thinking Hand Boiler Glass Science Energy Transfer Children Science Experiment Love Birds Color Meter Hand Boiler (Blue) By C&H.Hand Boilers are looped

Colorful Office Thinking Hand Boiler Glass Science Energy Transfer Children Science Experiment Love Birds Color Meter Hand Boiler 2 Pcs (Color May Vary) By C&H.Hand Boilers are looped

Colorful Office Thinking Hand Boiler Glass Science Energy Transfer Children Science Experiment Love Birds Color Meter Hand Boiler (Red) By C&H.Hand Boilers are looped

Colorful Office Thinking Hand Boiler Glass Science Energy Transfer Children Science Experiment Love Birds Color Meter Hand Boiler 3 Pcs (Blue&Green&Purple) By C&H.Hand Boilers are looped

Colorful Office Thinking Hand Boiler Glass Science Energy Transfer Children Science Experiment Love Birds Color Meter Hand Boiler 1 Pcs (Color May Vary) By C&H.Hand Boilers are looped

Colorful Office Thinking Hand Boiler Glass Science Energy Transfer Children Science Experiment Love Birds Color Meter Hand Boiler 2 Pcs (Blue&Red) By C&H.Hand Boilers are looped

Colorful Office Thinking Hand Boiler Glass Science Energy Transfer Children Science Experiment Love Birds Color Meter Hand Boiler 2 Pcs (Purple&Red) By C&H.Hand Boilers are looped

Colorful Office Thinking Hand Boiler Glass Science Energy Transfer Children Science Experiment Love Birds Color Meter Hand Boiler 4 Pcs (Red&GreenBlue&Purple) By C&H.Hand Boilers are looped

Colorful Office Thinking Hand Boiler Glass Science Energy Transfer Children Science Experiment Love Birds Color Meter Hand Boiler 2 Pcs (Red&Green) By C&H.Hand Boilers are looped

Colorful Office Thinking Hand Boiler Glass Science Energy Transfer Children Science Experiment Love Birds Color Meter Hand Boiler 2 Pcs (Purple&Green) By C&H.Hand Boilers are looped

Colorful Office Thinking Hand Boiler Glass Science Energy Transfer Children Science Experiment Love Birds Color Meter Hand Boiler 3 Pcs (Color May Vary) By C&H.Hand Boilers are looped

Colorful Office Thinking Hand Boiler Glass Science Energy Transfer Children Science Experiment Love Birds Color Meter Hand Boiler 3 Pcs (Red&Green&Purple) By C&H.Hand Boilers are looped

Colorful Office Thinking Hand Boiler Glass Science Energy Transfer Children Science Experiment Love Birds Color Meter Hand Boiler 3 Pcs (Red&Blue&Green) By C&H.Hand Boilers are looped

Colorful Office Thinking Hand Boiler Glass Science Energy Transfer Children Science Experiment Love Birds Color Meter Hand Boiler 2 Pcs (Blue&Purple) By C&H.Hand Boilers are looped

Description With the acceleration of urban development, elevators and people's lives are now inseparable, and there are potential hidden dangers. Let's take a look at the elevator knowledge with the fuji Elevator Supplier. First, wait for the elevator to be patient Do not rely on the door, the door, the door or the door. Second, the order to enter and exit the elevator Stop, stop, and then go in and out. Third, the elevator has to pay attention to Do not press the door open button, no matter what special buttons such as emergency rescue and alarm bell. Fourth, the passenger elevator has a conservation Not overloaded, no smoking, no trouble, no jumping. Fifth, the safety ladder has a bottom line Do not look at the mobile phone when entering or leaving; disable the object block door to prevent the decoration from being overloaded; the fire accident does not take the ladder, and the elderly and children should accompany it. Sixth, elevator safety rescue instructions 1, do not fear when the elevator stops running The stop of the elevator is a safety protection measure when the elevator fails. When the elevator is trapped, the car will not fall. 3, do not blindly rescue without professionals Passengers trapped in the elevator for help, should immediately send a distress signal, how to be non-professional personnel, please do a good psychological comfort for the passengers, do not do privately. 4, professional rescue should be timely When you meet someone for help, please contact the professional immediately, let them quickly go to the field science professional to rescue, to ensure safe rescue of passengers. information about Elevator Supplier: https://www.fujihd.net/