Shanghai China Weise Instrument Co., Ltd. (hereinafter referred to as "China Weise") was established in 2002.

Since its establishment for more than 20 years, China Weise has always focused on the application research of ultrasonic gas metering technology, deeply engaged in the extraction, transportation, and application markets of China's natural gas industry, and has completed the R&D of a full series of ultrasonic gas flow meter technologies and products.

The company has fully mastered the core technology of ultrasonic gas measurement and has developed and obtained more than ten invention patents. China Weise is also the primary supplier for major natural gas production and transportation enterprises in China, such as PipeChina, PetroChina, Sinopec, CNOOC, etc. Currently, there are over 8000 sets of ultrasonic gas flow meters in application.