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The plastic protruding part of the plug provides people with a sense of security since users dont have to touch the metal plug directly in the entire process of approaching the sockets. The metal plug will be hidden in the plastic protruding part when not being used. This is the very plug who keeps a close eye on the manners people make use of sockets, who helps to obliterate users phobia towards plugging, who strives to enhance the quality of your life.
Gao Yanbo, Fan Yong, Mao Longfei, Ying Fangtian(tutor)