KS P ISO 23600-2011(2016) Assistive products for persons with vision impairments and persons with vision and hearing impairments-Acoustic and tactile signals for pedestrian traffic lights
2021KS P ISO 23600:2021 Assistive products for persons with vision impairments and persons with vision and hearing impairments-Acoustic and tactile signals for pedestrian traffic lights
0000 KS P ISO 23600-2011(2016)
2011KS P ISO 23600:2011 Assistive products for persons with vision impairments and persons with vision and hearing impairments-Acoustic and tactile signals for pedestrian traffic lights