Qidong Changjiang Chemical Machinery Co., Ltd. (formerly known as Qidong Changjiang Machinery Factory), established in the mid-1980s, was restructured into a shareholding company in 1996 amidst the reform and opening-up. Located in the Yangtze River Delta Economic Zone, on the northern bank of the mouth of the Yangtze River, it is just a river away from Shanghai. With a riverfront and seaside location, it is adjacent to the Huzhou-Chongming-Qidong Bridge, Ningbo-Qidong Railway, and boasts an advantageous geographical position.

A modern enterprise integrating scientific research, design and development, and sales, it is one of the larger manufacturing companies in the oil and chemical equipment industry.

The company primarily focuses on processes such as mixing, filtering, and dispersing. It owns production and testing equipment, and products are manufactured strictly in accordance with corporate standards and customer requirements. The product range includes coarse and fine filters, Y-type filters, Blue filters, quick-release Blue filters, temporary filters, water filters, gas filters, bag and core fine filters, and more. Other products include high-shear emulsifiers, static mixers, sight glasses, flame arrestors, flame arrester breath valves, and star-type feed valves. In the metallurgy industry, it offers oxygen and acetylene gas control boxes, gas safety valves, gas drainers, anti-leakage gas condensate drainers, silencers, and flame arrestors before and after valves.

The company values both hardware investments and the construction of management. The Changjiang team will continue to strive with unwavering effort, meticulousness, and wholehearted service to achieve your satisfaction. Scientific management, careful craftsmanship, continuous improvement, and customer-centricity are the principles of Changjiang; people-oriented and trustworthy service is at the core of our business philosophy. Perfectionism and pursuit of excellence are the goals of the Changjiang team. Over the years, we have accumulated extensive experience and wisdom in design, manufacturing, assembly, debugging, and system operation. Now, utilizing computer simulation and network synthesis technologies, we continuously introduce new products. We grow with our clients. What our clients need, we strive to deliver. Guided by wisdom as our compass and diligence as our oar, we continuously explore new horizons. Talent is our pump, and integrity is the essence of commerce. Our motto as Changjiang people is to pursue high-quality products and provide satisfactory services.