As a led advertising vehicle, its biggest advantage is to use huge screens, colorful colors to attract the attention of many passersby. At this time, the quality of the big screen led advertising car plays a crucial role, if its quality is excellent, then the color of the screen animation is gorgeous, playback is no problem. And if the screen quality of the led advertising car is not up to standard, the color of the broadcast will be biased, affecting the visual appreciation. How to observe the led advertising car screen and judge the quality? First, we first look at the surface of the led advertising car to see how smooth it is. If the screen appears convex or concave, it will cause the image to appear distorted. In order to ensure the vision, the flatness of Led's advertising screen cannot exceed one millimeter. Second, we can pay attention to the brightness of led advertising vehicles. If it is sometimes outdoors, and the brightness of the screen is not high enough, people will not be able to see the content on the screen, which will hinder the promotion of the product. According to the actual situation of indoor and outdoor to adjust the brightness of led advertising car. Third, we can pay attention to the color of led advertising vehicles. If the proportions of the three primary colors of red, green, and blue are not correct, then the white color displayed on the screen will be biased and appear yellowish green. At this time, it shows that the white balance effect of the led advertising car is not good. But also to observe its color, take a look at the led advertising car screen has not restored the color. Finally, we can pay attention to the image effect of led advertising. Pay attention to whether the led advertising car screen displays mosaic or black spots, or it is a case of color blocks. These are factors that hinder people's viewing and affect the viewing effect. We can determine the screen quality of led advertising car from the appearance of led advertising car, its brightness, its color, and its image effect. A screen with good quality can play colorful videos smoothly and unobstructedly, giving a visual enjoyment. FIG400
union connector: threaded / butt weld
Unions produced by Qinsen are used in cement trucks, fracturing trucks, various manifolds, pipelines and other high-pressure equipment, and are important accessories for transporting oil, water, fracturing fluid and mixed fluids. This product is made of high-quality alloy steel by forging and finishing. It has good mechanical properties, sealing performance and different pressure levels. It is a basic accessory for oil drilling and production operations. The pressure grade of the union produced by Qinsen covers 7MPa~105MPa, and the specifications and models include FIG100, FIG200, FIG206 , FIG207, FIG400, FIG602 , FIG607, FIG1002, FIG1502, and the joint styles are threaded and welded.
FIG400,Weco Hammer Union Fig400,API 4in. Male Blind Blocking Union,Fmc Hammer Union Figure400 Xi'an Qinsen Technology Co.,Ltd . , https://www.xianqinsen.com