Qingdao Guolin ceramic New Material Technology Co., Ltd (hereinafter referred to as "the Company") Cheng Liyu in January 2023, is a domestic technical enterprise specializing in the research and development of precision ceramics and the production of precision ceramic device products. The company is committed to developing and improving precision ceramic products, and its main products include piezoelectric vibration plate, tire balancer, high-pressure fuse, atomizing plate, pickup vibrator and so on, which are widely used in the industry of automatic material selection, transmission and auto protection sensor.