The Lianggong Valve Co.,ltd is located in Yongkang, which is under the jurisdiction of Jinhua, Zhejiang province. Yongkang city is known as the "Hardware City of China". People in Lianggong valve inherit traditional craftsmanship and technology, spread the Craftsman's spirit. With over thirty-years’ efforts, our company has developed into an all-round valve manufacturing company, including research and design, production, marketing and service. Successors have picked up the baton from pioneers and exploit the growing opportunity.

Company covers an area of 21,068 square meters, with 153 employees, including 3 senior engineers, and 2 quality control engineers. Also, we 're well-equipped with all kinds of producing and testing equipment, 84 processing devices, 22 testing equipment, material Spectroscope, material stretching testing machine, hardness testing device, ultrasonic thickness meter, metal metallographic analyzer, and other devices.

We process Production Line of Sand Molding Casting as well as integrated services of design, research and development, casting, processing, assemble, coating and customer service. The products with the registered trademark of YONLIN are widely used in the field of petroleum, chemical industry, food processing, metallurgy, building and pharmacy filed. In strict accordance with the standard of GB, JB, JIS, ANSI, KS, BS, DIN, API and etc., we produce many kinds of valves like ball valve, check valve, globe valve, strainer, electro-valve and pneumatic valve,PTFE-lined, which are made of alloy steel, heat-resistant steel, stainless steel, carbon steel, nodular cast iron, gray cast iron materials. According to customers’ requirements, we can customize sealing sets of materials of PTFE, Glass Fiber PTFE, SSPTEF, PPL, PEEK, DELRIN,VTION ect.

Our company has passed ISO9001 international quality system Authentication, ISO14001 Environmental Management System Authentication, 28001 Security Management System Authentication. Also, we’ve got TS Manufacture License of Special Equipment, and we are a member in the china valve Association.

We’ve established a good and long-term business relationship with companies from the United States, Spain, Italy, Germany, UK, Romania, Malaysia, Vietnam and Singapore and many other countries. We enjoy a good reputation at home and abroad. And have been adhering to the idea of “By standard of customers, producing valves in better quality and providing perfect service”.