Zhangjiakou Xincheng Changsheng Technology Co., Ltd. is a technology-driven enterprise focusing on high-precision mechanical processing and vacuum equipment manufacturing, integrating technology development, production integration and supporting services. The company boasts unique advantages in diffusion welding technology, and is capable of providing high-standard, customized integrated solutions for aerospace, electronic industry, semiconductors, scientific research instruments and other fields. Equipped with advanced CNC machining centers and precision testing equipment, the company can undertake processing of precision components and special material treatment, with a machining accuracy up to ± 0.005 mm. It has established a comprehensive quality management system and realized full-process quality traceability. Meanwhile, based on its profound accumulation in vacuum technology, the company professionally provides R&D, manufacturing and system integration services for vacuum equipment including vacuum chambers, vacuum tanks, fluorine oil platforms and other vacuum products. Its products feature high vacuum degree, excellent sealing performance, structural stability and intelligent controllability, and can meet the requirements of harsh working conditions such as ultra-high vacuum, high temperature and high pressure. Its core diffusion welding technology can achieve PA-level high vacuum, 100% non-destructive testing, multi-material combination welding and all-weather technical support. The company has successively participated in national and key scientific research projects including the wind tunnel test bench of China Agricultural University, the extraterrestrial exploration project of the National Astronomical Observatories, and the test platform of Tsinghua University. Its products have passed authoritative acceptance and operated stably for a long time. With solid technical strength, reliable product quality and high-quality services, the company has become a trustworthy partner for precision processing and vacuum equipment in the high-end manufacturing and scientific research fields.