Group 1 - The 100-ton electric vibration testing system developed by Dongling Company is recognized as a key technological foundation for high-end equipment in aerospace and marine applications, recently included in the top ten technological advancements in the equipment manufacturing sector by the Jiangsu Provincial Association for Science and Technology for 2024 [1] - The system represents a systematic technological reconstruction rather than merely scaling up existing machines, addressing challenges in heat dissipation, structural strength, and precision guidance, and is capable of simulating complex mechanical conditions for high-precision equipment in aviation, aerospace, shipping, and rail transportation [1][2] - Dongling Company has achieved breakthroughs in several key technologies, including the design of large thrust voice coils and efficient cooling control, resulting in 26 domestic and international invention patents and recognition from various industry associations for its technological achievements [2] Group 2 - Dongling Company is a national high-tech enterprise based in Suzhou High-tech Zone, focusing on core technologies for dynamic testing equipment, with 25% of its workforce dedicated to research and development [2] - The company is currently advancing multiple new testing system projects, with a notable focus on a national key research and development project aimed at simulating complex service environments for major aerospace equipment [3]