Full Process Quality Control
In order to provide high-quality products, Lianzheng is equipped with advanced testing equipment and perfect testing methods, and has established a strict quality management team to realize the quality control of the entire process from raw material inspection to production process inspection and product and application.


Strict Production Inspection
From raw castings to final products, we have advanced inspection methods and testing equipment for quality control. All products are subject to precise material analysis and size inspection in accordance with relevant standards, and strict process inspection is carried out throughout the production process. Each valve is produced in accordance with customer requirements or international standards, and undergoes final inspection before shipment. We will strive to achieve high-quality valves.
Full Cycle Quality Inspection
From raw castings to final products, we have advanced inspection methods and testing equipment for quality control. All products are subject to precise material analysis and size inspection in accordance with relevant standards, and strict process inspection is carried out throughout the production process. Each valve is produced in accordance with customer requirements or international standards, and undergoes final inspection before shipment. We will strive to achieve high-quality valves.


