丰满少妇高潮惨叫久久久一,娇妻玩4p被三个男人伺候电影,久久er99热精品一区二区,亚洲国产av无码精品

Hello! Welcome to Shenzhen Jintong Display Technology Co., Ltd. (splicing screen)!
中文版 | English
News
Industry trends
Fire prevention knowledge of LED full-color display screens that cannot be ignored
Number of views:2189order Release Date:2020-11-26
1、 Wire quality: in most cases LED display screenIn applications, the larger the unit area of the display screen, the greater its power consumption, and the higher the requirements for the stability of wire electrification. Among numerous wire products, the use of wires that meet national standards can ensure their safety and stability. There are three requirements: the wire core is a copper wire conductive carrier, the cross-sectional area tolerance of the wire core is within the standard range, and the insulation and flame retardancy of the rubber wrapping the wire core meet the standards. Compared with general copper-clad aluminum wire cores, wires with smaller cross-sectional areas and insufficient insulation rubber grades, the electrical performance is more stable and less prone to short circuits.

2、 Power Quality: UL certified power products are available for purchaseLED full-color display screenThe best choice for power supply, its effective conversion rate can ensure the safety and stability of power load, and it can also work normally in hot external environments.

3、 External protective structural material for LED full-color display screen: High fire rating on the marketLED display screenMost of the products are made of fire-resistant aluminum-plastic panels, which have excellent fire resistance and strong flame retardancy. The oxygen aging performance of the core material is also strong, with a melting point temperature of 135 ℃ and a decomposition temperature of ≥ 300 ℃. They are environmentally friendly, low smoke and halogen-free, and comply with SGS flame retardant B-S1, d0, t0, and reference standards UL94 and GB/8624-2006. The aluminum-plastic panel of a typical outdoor LED display screen ages rapidly due to high temperature, rain, and thermal shock, making it easy for rain and dew to seep into the interior of the screen during humid weather seasons, causing electronic components to short circuit and trigger fires.

4、 Plastic kit:LED full-color display screenThe plastic kit is mainly used as the material for the bottom shell of the unit module face mask. The main raw material used is PC fiberglass material with flame retardant function. It not only has flame retardant function, but also does not deform, become brittle or crack under high and low temperatures and long-term use. At the same time, it is used in combination with well sealed glue, which can effectively block rainwater from the external environment from penetrating into the interior and causing short circuits and fires. Samsung LCD splicing screen LCD splicing wall


Contact Us
Address: Building B, Lihao Yongda Technology Park, No.1 Dongfang Avenue, Guangming District, Shenzhen
Phone: 0755-23576861
24-hour service hotline: 139 2371 0018

QR code
CopyRight ? 2017 Shenzhen Jintong Display Technology Co., Ltd. All Right Reserved
展開
  • Tel

  • 075523576861
QR code
丰满少妇高潮惨叫久久久| 亚洲日韩乱码中文字幕| 久久久精品波多野结衣| 欧美粗大猛烈老熟妇| 亚洲av无码专区在线观看下载| 18禁止看的免费污网站| 免费观看a级毛片| 欧美婷婷六月丁香综合色| 天天爱天天做天天爽| 米奇7777狠狠狠狠视频影院| 妓女爽爽爽爽爽妓女8888| 国产综合在线观看| 日日躁夜夜躁狠狠久久av| 老太脱裤让老头玩ⅹxxxx| 精品久久人人爽天天玩人人妻| 扒开双腿疯狂进出爽爽爽视频| 亚洲人成伊人成综合网久久久| 久久人妻少妇嫩草av无码专区 | 亚洲综合精品伊人久久| 熟妇人妻无码中文字幕| 欧美午夜精品久久久久免费视| 日韩国产精品无码一区二区三区| 亚洲爆乳无码专区www| 亚洲成亚洲乱码一二三四区软件| 日韩人妻一区二区三区蜜桃视频| 夜夜春夜夜爽| 中年熟妇的大黑p| 免费观看mv大片高清| 久久99精品久久久大学生| 免费av一区二区三区| 国产亚洲精品精品国产亚洲综合| 欧美熟妇xxxxx欧美老妇不卡| 波多野结衣爽到高潮大喷| 日日av拍夜夜添久久免费| 黑人巨茎大战欧美白妇| 午夜视频在线在免费| 精品国产一区二区三区av性色| 1000部夫妻午夜免费| 亚洲欧美精品伊人久久| 亚洲综合国产一区二区三区| 亚洲日本一区二区一本一道|