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WH-37B 5M led distance visual acuitry chart

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LED Distance visual acuity chart 


WH-37B


Led light 

Size:80cm*28.3cm*1.8cm
Test distance :5m.

Letter charts , C charts, E charts, and Child charts optional .


WH-37B

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 0086-13675174098
  0086-25-58575880
 yaqinhe7@163.com
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