In order to improve the safety and energy exchange efficiency of electric thermal pyrotechnic devices. a new energy exchange element technology of high energy metal (W) film/aluminum nitride ceramic was explored by taking advantage of the high thermal conductivity of aluminum nitride ceramic materials. High-temperature co-fired ceramics were used to prepare the new system energy excha... https://www.herbsdailyes.shop/product-category/gastrointestinal-probiotics/