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When we finished shopping and came back to home. But it has no idle hands can open the door?
Step on the door is a door with a new institution. We can replace rotary doorknob to stamped on pedal and no need to put the goods which in our hands on the floor.To prevent the dimly lit places, causing inconvenience to the use, Blue light can be projected to help users.
ZHAN,ZI-LIN LIN,LIANG-JYUN JHANG,JIA-YU Wayne HUANG