Qingdao Jingrui Machinery Manufacturing Co., Ltd.

Qingdao Jingrui Machinery Manufacturing Co., Ltd. is a high-tech enterprise that integrates the R&D & design, manufacturing, and sales of high-precision control valves. With over two decades of deep expertise in the valve sector, the company has built a full-industry-chain quality control system covering stainless steel precision casting, precision machining, and valve assembly & testing.

Under its proprietary brand "ESG", its valves have passed internationally recognized certifications including the EU EX explosion-proof certification, the U.S. FDA certification, and the Russia CU-TR certification, and are widely applied in high-end fields such as nuclear power, new energy, and sanitary & pharmaceutical industries.

Its independently developed key technologies have received funding support from 2 key technology R&D programs of the provincial and municipal science and technology authorities, and one of its products has been recognized as a Shandong Province "First Set" (first unit/set) key core component.