一级片aaaaa丨国产在线视频一区二区董小宛性色丨日产精品一区2区卡四卡二卡丨国产亚洲视频在线观看播放丨国产自产一区二区丨国产亚洲精品久久7788丨在线观看亚洲国产丨熟女女同亚洲女同丨一区在线视频丨少妇一级淫片免费放播放丨午夜福利电影无码专区丨日批视频网站丨综合久久久久久综合久丨欧美阿v高清资源不卡在线播放丨欧美77777丨久久久久久国产精品无码超碰丨无码专区亚洲综合另类丨九九福利丨青青国产精品视频丨在线色综合丨久久这里只有精品9丨91视频国丨黄色免费视频在线丨国内精自线一二三四在线看丨国产精一品亚洲二区在线播放

When is the protective film of the curtain wall aluminum veneer suitable to be torn off? This may be the most important question everyone wants to understand. The curtain wall aluminum veneer comes with a protective film when it leaves the factory. The main function of the curtain wall aluminum veneer protective film is to prevent and reduce the damage caused during transportation and handling of the aluminum veneer. In fact, when to tear off the protective film of the curtain wall aluminum veneer It is very particular. Next, Shenzhen Zhongda Aluminum Products Decoration Co., Ltd. will tell you:

After the aluminum veneer manufacturer completes the processing and production of the curtain wall aluminum veneer, after the quality inspection stage, the worker covers the surface of the curtain wall aluminum veneer with a protective film. After the curtain wall project is completed, the protective film of the curtain wall aluminum veneer remains on the board, which is not very beautiful.

When should the protective film of the aluminum veneer of the curtain wall be torn off? Normally, the protective film should be torn off about 7 days after the completion of the project, and the aluminum veneer curtain wall should be cleaned with a neutral detergent. Special consideration should be given to the season and temperature conditions. If the project is outdoors in summer, the protective film will be exposed to direct sunlight for a long time, which will cause the protective film to age and increase the difficulty of tearing the film.

In addition, domestic aluminum veneer manufacturers generally use protective films printed with their own trademarks, so special care should be taken not to stain the surface of the curtain wall aluminum veneers with ink. It is very important to tear off the watch protective film in a timely manner.