国产精品欧美日韩另类_高清一级无遮挡毛片_亚洲一级毛片在线观看无码_开心五月综合亚洲_国产奶头好大揉着好爽高潮视频_蜜芽国产尤物Aⅴ尤物在线看_日韩av网站观看_日本黄色亚洲视频网站_波多野结衣在线免费播放_高清不卡的无码av

Batteries
Ultrasonic connection technology is also widely used in the field of battery production to ensure the best electronic conductive connection, from the welding of copper and aluminum foil materials inside the battery cell, to the welding of high-current connectors and electronic components of the outer module, it may be the electric car you are driving. Cars, refrigerators and air-conditioning systems in everyday life are equipped with refrigeration circuits made of copper tubes, which are cut and welded air-tight at the same time by ultrasonic welding, thereby sealing the refrigeration circuit. DONGHO ultrasonic metal welding can always accompany you in your life.
Constantly beyond, The pursuit of perfection, Integrity text
A dedicated to technical innovation, focusing on intelligent supersonic plastic welding and metal welding research and development and production provider