In 1989, Mr. Xu Diqing raised RMB 3,000 to start his business, and established Changhe Town Special Cooker Accessories Factory, mainly producing voltage regulators. According to the needs of enterprise development, Cixi Sanya Gas Equipment Factory was established in 1994, and began to enter the liquefied petroleum gas cylinder valve industry. Through continuous technological transformation and innovation, the enterprise has been further developed.

In 2003, it was renamed as Ningbo Jinjiajia Valve Co., Ltd., with domestic leading automated production and testing equipment, such as multi-station special machines, automatic assembly and testing lines, spectrometers imported from Germany, high-precision roundness meters and other specialized equipment, focusing on gas pipelines Technological innovation and development of ball valves, bottle valves, globe valves, plug valves, check valves, filter valves, and hardware pipe fittings.

The company is now located at No. 381, Ningfeng North Road, Changhe Town, Cixi City, Zhejiang Province. It covers an area of 15,000 square meters and has a construction area of 17,000 square meters. It has total assets of 150 million yuan, more than 200 employees, more than 30 technicians with high and intermediate professional titles, and the company's annual output value reaches 200 million yuan.