普天科技：公司自主设计和开发多款恒温晶振产品

Group 1 - The company, Putian Technology, focuses on the manufacturing of special printed circuit boards that require small batches, short delivery times, high reliability, and specific process requirements [2] - The company has independently designed and developed several high-end temperature-compensated crystal oscillator products, achieving control over key core technologies [2] - These products are widely used in high-end fields such as aviation, aerospace, navigation, high-speed rail, communication, electric power, and special equipment [2] Group 2 - The company, Electronic Science and Technology Navigation, focuses on providing customized application solutions for industries such as water conservancy, energy, emergency response, meteorology, and agriculture [2] - Major information from the company should be referenced from announcements published in designated information disclosure media [2]