21毫米方形|LED像塑管 | LED像塑管

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21毫米方形

21毫米方形|LED像塑管 | LED像塑管

21.6mm 像塑管 (3 red 6 green, 方形封装)
21.6mm 像素管 ED

21.6mm 像塑管 (2 red 1 green 1 b ue, 方形封装)
21.6mm 像素管 ...