The raised dot on the number "5" key of metal keyboards is designed based on Braille principles to serve as a tactile orientation marker.

Explanation

      Braille, also known as dot writing or raised type, is a tactile writing system designed specifically for blind and visually impaired individuals. It consists of various combinations of raised dots created on paper using slate and stylus, Braille writers, or Braille embossers. Each Braille cell typically comprises six dots arranged in two columns. The system was invented in 1824 by Louis Braille, a blind French educator, which is why it is universally referred to as "Braille." This historical accessibility standard is the reason why metal keypad keys feature this tactile indicator.

About Yuyao Xianglong Communication Industrial Co., Ltd.

      Yuyao Xianglong Communication Industrial Co., Ltd. is a high-tech enterprise integrating R&D, manufacturing, sales, and service. With 15 years of expertise in custom industrial metal keyboard production, our products are primarily deployed in unattended or semi-attended information terminals across various sectors, including:

      Internet terminals, universities, shopping malls, hotels, banks, airports, and railway stations

      Self-service kiosks and ticket vending machines

      ATMs (Automated Teller Machines)

      Public payphones and instrumentation equipment

      CNC machine tools

      Security access control systems

      We provide customized metal keyboard solutions tailored to the specific needs of diverse industries.

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For inquiries, please contact our team:

Mr. Chen: 13858299816 | Ms. Wang: 13858299815 | Mr. Chen: 13858202922