Langfang Casen was founded in 1982 with an initial registered capital of 10,000 and 12 employees. The legal person is Yang Baosen. After 37 years of reform, innovation and restructuring, it has grown into a company with three branches, 10 million registered capital, more than 100 employees, and certified by the Ship Inspection Bureau (CCS). At the same time, it has developed a special ultrasonic cleaning technology for marine cooling equipment, and has many national important qualifications such as national A-level cleaning qualification.