可用于护栏管。
护栏管系列，点光源显示屏系列，模组系列等应用产品。
Guardrail tube series, point light display series, module series applications.
LED护栏管，有奶白色、透明色之分，通过控制方式后(外控与内控)。
LED fence tube, there is milk white, transparent color of the points, through the control mode after (external control and internal control).
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