Qianwei Meters（Chongqing）Co., Ltd. is a wholly-owned subsidiary of Chongqing Qianwei Technologies Group Co., Ltd of China State Shipbuilding Corporation Limited, a top 500 enterprise in the world. We have independently developed diaphragm gas meters since 1978 and are one of the earliest enterprises engaged in gas metering in China.

We mainly focus on research and development, production, and sales of diaphragm gas meters, Internet of Things gas meters, ultrasonic gas meters, gas flow meters, and smart gas integrated management platform software. Up to now, it has developed into a science and technology enterprise with the ability of "smart manufacturing" of technological innovation and research and development of the whole chain of gas metering instruments and is a central enterprise with great strength in the field of gas metering. We are committed to providing more accurate, safer, and smarter metering management solutions for gas operators, and promoting the digital intelligence process of the city gas industry. Our products have taken the lead in China to pass EN1359, OIML, and other certifications.

We have sold our meters in more than 30 countries and regions worldwide. The cumulative number of service enterprise customers is more than 1,000 and the number of end users is more than 70 million.