Lange Constant Flow Pump Co., LtdEstablished in 1997, it is a wholly-owned subsidiary of Halma Limited in the UK, under the Medical Equipment Division, specializing in the research and development, production, and sales of precision fluid transmission and processing equipment.

Lange always adheres to customer demand orientation, providing safe, high-precision, and high-quality fluid transmission equipment and solutions, including standard products such as peristaltic pumps, laboratory injection pumps, industrial injection pumps, micro gear pumps, micro plunger pumps, filling systems, etc. It can also design and develop OEM supporting products according to customers' diversified needs. There are over 40 product series and over 300 product models. We attach great importance to the quality, delivery, value, and technology of our products and services, and persistently provide products and services for fields such as pharmaceutical machinery, medical devices, environmental monitoring, and laboratories.

As an advanced provider of fluid transmission solutions, innovation is the driving force behind Lange's sustained development. At present, Lange has obtained 26 professional certificates and 9 copyrights. It has research and development centers in Guangzhou and Baoding, and branch offices in Shanghai and the United States. There are approximately 150 employees, with 20% being research and development personnel.

Halma plc, founded in 1894, is a company in the field of safety, health, and environmental technology. The company is listed on the London Stock Exchange (HLMA: LSE) and is listed on the FTSE 250 index, with a market value of approximately £ 2.2 billion. Haomai UK is a personalized group, with its main products covering four areas: process safety, infrastructure safety, medical equipment, environment and analysis. It has about 40 subsidiaries located in over 20 countries and regions, with approximately 5000 employees; Operations are mainly focused on the European, North American, and Asian markets, with customers in over 160 countries and regions.