The switchable privacy film is injected into the liquid crystal polymer (PDLC) in the form of particles in the middle of two transparent conductive films, and is produced by a special process. Using the characteristics of the nonlinear optical system and the polymer material, all the particles are disorderly arranged when not energized. Since the refractive index difference between the liquid crys
Industrial steam boiler is the machine equipment which heats water to a certain parameter and produce high temperature steam. Steam boiler belongs to special equipment, the design, processing, manufacturing, installation and use of the boiler must be subject to the supervision of the technical supervision department, the users can only use the steam boiler if they have obtained the boiler usage ce
Different types of core barrel are suitable for different projects. There are many types of core barrel to deal with a variety of situations, therefore, with the different working conditions, workers can choose the appropriate core barrel, so as to improve work efficiency and ensure safety.
Popular large-scale amusement equipment includes children's roller coasters, bumper cars, and large pendulums.
It has the characteristics of high drilling efficiency, good rock core quality, long bit life and low labor intensity. In actual work, the environment in which the rope drill is used is relatively harsh. Q series wireline core barrel have the advantages of simple structure, less wearing parts and high core-taking rate.
Active RFID tags are generally powered by built-in batteries, and different tags use different numbers and shapes of batteries.
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