The reflective part of the warning signs is the use of high refractive index glass beads retro-reflective principle and the principle of micro-diamond-shaped reflective reflective lattice through advanced technology made ​​after focusing treatment. It will direct light reflected back to the distant luminous place, whether during the day or night retroreflective have good optical performance. Especially at night, can play the same as the daytime high visibility. ZHEJIANG RUIFEI TRAFFIC EQUIPMENT CO.,LTD using high visibility reflective material warning signs, whether the user is in a distant place, or in the case of light or scattered light interference, can be relatively easily nighttime drivers found walking at night brings security for Nightcrawler.

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