Jiangsu Yonggang Group is located in Zhangjiagang City, Jiangsu Province. It is a comprehensive enterprise group with iron and steel as its main business, financial trade, building materials, equipment manufacturing, circular economy, new energy and other diversified industries coordinated development. The cooperation between Yonggang and Mining Machinery has improved the soot problem in Yonggang's workshop. The smoke and dust meter provided by Mining Machinery is specially used in areas with many smoke and dust problems such as production workshops and construction sites, and can effectively detect smoke and dust concentration problems.

Yonggang Group introduction:

Since the 18th National Congress of the Communist Party of China, Yonggang Group has thoroughly implemented the new development concept and achieved high-quality development. Promote the structural reform of the supply side, the general, excellent and special steel products developed and produced are sold to 28 provinces, autonomous regions and municipalities in China and 112 countries and regions abroad, including 32 countries and regions along the “Belt and Road”, which are used in construction , transportation, energy and other fields, Hong Kong-Zhuhai-Macao Bridge, "Dubai Eye" Ferris Wheel, Singapore Marina Bay Sands Hotel and other well-known projects. Strengthening the construction of ecological civilization, it has been recognized by the Ministry of Industry and Information Technology as a "Green Factory" and "Green Supply Chain Management Demonstration Enterprise". Actively fulfilling its social responsibilities, since 2012, the accumulated tax revenue has reached 13.8 billion yuan, and more than 10,000 people have been employed. It has also actively contributed to the rural revitalization of Yonglian Village, participated in poverty alleviation, supported the army and family members, ethnic religions, and voluntary blood donation. China Charity Award" and other honors.

Changshu Mine Electromechanical Equipment Co., Ltd. is a high-tech enterprise specializing in technical research, product development, manufacturing and operation services in the field of particle detection. The company has always adhered to the field of dust detection, and has achieved fruitful results in the research and development of particle detection instruments. "JJG846-2015 standard participating in the drafting of one of the units.