制服丝袜第10页综合|四房色播开心网|最新国自产拍在线播放

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產品中心

3D METAL SOUND SCREEN

3D金屬透聲幕

銀幕基材標準:屏幕基材:采用阻燃高彈PVC軟幕做幕基,進口熒光材料可卷曲運輸,拉伸強度為320Mpa,幕面穿孔直徑0.8mm-1.2mm,中心孔距4mm。

銀幕技術參數:投影方式:正投,粗糙程度:<25μm,均勻度:>98%,色彩還原偏差 ≤4%。銀幕亮度系數β=2.4±0.1(增益可定制,幕面可擦洗),有效放射角α=60°±0.3,色彩還原偏差 ≤4%,屏幕解像率 125線/mm,適應明亮環境 50—200LUX室內,穿孔幕聲衰減:8KHz=3.7dB   12.5KHz=4.1dB,偏振光還原性250:1。銀幕韌性大,幕布符合RoHS環保標準,抗UV,防靜電,可擦洗,可水洗,防潮,防霉,阻燃,長久使用不老化。全套專業環保設備管控生產保證車間零污染、無毒無氣味。

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制服丝袜第10页综合

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