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●Resolution to current indication for one-to-one single use
●The interior pattern can change, it is easy to alter the direction of the escape route.
●Use slide projector indicators, so that within the projection, different indicators can be projected on the panel
●Reach the state of environmental protection and all in one results
PAN YI-XUAN / CHANG HSIN-YU/ LIN HAN-WEN / LAN SHI-JIE