Diamond jewelry

What are the control methods of powder coating fluidity

Method of controlling free flow of finished powder 1.1 The main component of low temperature pulverized powder coating is resin, and the molecular weight of resin is low, generally only several thousand, the softening point is generally not more than 115℃, the softening point of epoxy resin is only about 90℃. The glass transition temperature …

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Breaking the laws of physics? The Webb Space Telescope has discovered two unusual galaxies

The first few hundred million years after the Big Bang remain the only understudied period of the cosmic age. The James Webb Space Telescope, equipped with extremely sensitive infrared equipment, is the most suitable machine for this task. In just a few weeks since the first data was released, dozens of candidate galaxies have been …

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