baoyu135国产精品免费_成人精品视频一级毛片_亚洲中字无码A∨电影在线观看_国产免费高潮白浆二区三区_免费视频在线观看高清无码_精品无码久久国产2024_亚洲AV无码专区牛牛影院_精品第一国产综合精品aⅴ_午夜大片爽爽爽免费影院_日本在线高清视频

Nowadays, security checkpoints are very common, and such devices are available at security checkpoints in railway stations, bus stations, airports, subways and other places. The theory is that through X-ray fluoroscopy, the items in the suitcase will be displayed on the screen in the form of images, to identify suspicious items and timely eliminate possible dangers. And the curtain on the security device, you’ll notice that it’s not just a regular rubber curtain. It’s used to block x-rays, which is…

With the improvement of living standards, more and more electrical products enter our life and work. According to the expert introduction, these electric equipment can produce electromagnetism radiate more or less. Although a lot of electric equipment mark the amount that accords with national standard, but concentrated radiation of numerous electric equipment still has harm to human body, especially to the pregnant woman that the body is in sensitive period and low resistivity period harm is bigger. Pregnant women who…

Tungsten polymer glove is a protection against physical, chemical, and biological factors that may harm the hands of workers. In addition to chemical resistance, it also has anti-cutting, electrical insulation, waterproof, cold prevention, heat protection, radiation protection, fire resistance, flame retardant and other dings, which can be applied to quality inspection, electronic industry, national defense military industry, aerospace, plastics industry and other industries. Tungsten polymer glove has high hardness, good wear resistance, long service life and cost saving for users.…

Tungsten polymer protective clothing has good moisture permeability and barrier property, which can effectively resist the infiltration of alcohol, blood, body fluids, air dust particles and bacteria, so as to protect the wearer from infection. Besides, it is light in texture, strong in tensile strength, breathable and waterproof. It is very comfortable to wear on the body. Tungsten polymer is a new type of non-polluting protective composite. It is also known as a kind of high density tungsten polymer composite…

Tungsten polymer granule is a kind of polymer that combines various resin materials with tungsten particles in different proportions. It has high density, small volume, and excellent reprocessing performance, which can be reprocessed into other products. Chinatungsten Online uses high quality raw materials to produce tungsten polymer granule of better quality, and customers can customize various sizes of granules. Tungsten polymer granule can be further processed into weights, clothing, plates, pipes, sheets and so on. These products have good radiation…