Recently, the Ministry of Science and Technology organized and held the acceptance meeting for the key projects of the “Eleventh Five-Year†National Science and Technology Support Plan “Million-Year-Grade Ethylene Equipment and Related Technology Developmentâ€. The project carried out research and development work on localization of one million tons of ethylene equipment, and successfully developed key equipment such as cracking gas compressors, refrigeration compressors, cold boxes, and large four-row labyrinth seal compressors. In compressor structural design, unit performance analysis, key Many core technologies with independent intellectual property rights have been obtained in the aspects of component design and manufacturing, cold box heat transfer calculation, fin development and brazing. Some of the technologies developed by the project have achieved industrial applications and have achieved significant economic and social benefits. The acceptance expert group unanimously agreed to pass the acceptance after questioning and discussion. Laser Cleaning Machine,Laser Rust Removal Machine,Handheld Laser Cleaner,Laser Cleaner Rust Removal Feiquan Laser Technology Wuxi Co., Ltd. , https://www.fq-lasers.com