Ganzhou Dachang Air Conditioning Equipment Engineering Co., Ltd. has been dedicated to equipment research and development since its establishment in 2003, and has continuously invested a lot of manpower and material resources. Thanks to the joint efforts of all employees, the company has made significant progress in vacuum equipment production technology and has won high praise from industry peers and customers. Here, Ganzhou Dachang Air Conditioning Equipment Engineering Co., Ltd. solemnly promises that we will live up to expectations and continue to provide customers with excellent products and services.

　　The following is an overview of the research and development process of some key equipment in our company (note: the interpretation of all equipment related information belongs to Ganzhou Dachang Air Conditioning Equipment Engineering Co., Ltd.):

　　In March 2013, a vacuum precooler was successfully developed.

　　In April 2013, a vacuum pre cooler specifically designed for vegetables was launched.

　　In May 2013, a vacuum cooling machine was further developed.

　　In June 2013, a vacuum pre cooler was launched for the cooked food market.

　　In August 2014, we successfully developed a file insecticidal machine and a vacuum nitrogen filled insecticidal sterilization and disinfection machine.

　　In September 2014, a low-temperature freezing disinfection cabinet and a large intelligent low-temperature freezing insecticidal ozone disinfection machine were launched.

　　In December 2014, a fully automated archive disinfection room was successfully built.

　　In September 2015, a low-temperature and high humidity thawing machine was developed.

　　In May 2016, a vacuum deodorization machine was launched.

　　In June 2016, a freeze-drying machine was developed for the fields of food, fruits and vegetables, and medicine, and at the same time, insecticide and disinfection equipment for archives, cultural relics, books, and ancient books was launched.

　　In April 2017, we successfully developed a workbench for copying and restoring archival cultural relics, ancient books, calligraphy, and paintings.

　　In May 2017, a multifunctional archive, cultural relic, book, and ancient book restoration platform was launched.

　　In June 2017, we successfully developed a file, cultural relic, and book mounting, flattening, drying, and restoration machine.

　　In August 2017, a dust removal, disinfection, and purification equipment was developed.

　　In September 2018, a low oxygen insecticide storage system was launched.

　　In October 2018, we successfully developed ultra-high pressure sterilization equipment.