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ABOUT US
Shanghai quanhang Valve Manufacturing Co., Ltd. is located in Shanghai, the economic center of China. It is located in Jinshan District of Shanghai with convenient transportation. It is specialized in the production and sales of valves. It is a high-quality manufacturer of special valves in Shanghai. At present, it has built a large steel structure workshop and several advanced production lines, which can produce and supply hundreds of valve products, including special valves, ball valves, butterfly valves, valves, globe valves, control valves, balance valves, control valves, pneumatic and electric valves, safety valves and other products.
Shanghai quanhang Valve Manufacturing Co., Ltd. has been paying attention to product quality assurance, from the beginning of production to the factory, the whole process of quality monitoring, strict testing links...


NEWS CENTER
Lanzhou Petrochemical Company has successfully solved the problem of processing high-sulfur crude oil.
Lanzhou Petrochemical Company has successfully solved the problem of processing high-sulfur crude oil by means of precise scientific "formulas", providing support for improving resource processing efficiency and optimizing raw material structure. As of March 3rd, the company has processed a total of 318,000 tons of Kazakh and Bayan crude oil this year, achieving clean and efficient conversion of low-quality crude oil and laying a solid foundation for the entire year's production
2026-3-20-

NEWS CENTER
The Jinhai Oil Production Plant of Liaohe Oilfield has solved the sand production problem through an integrated process.
On March 5th, at the site of Well Wawa 38-39-K033CH in Jinhai Oil Production Plant of Liaohe Oilfield, after the application of the gravel packing technology, the well successfully overcame the long-term sand production problem and achieved a stable daily oil production of 2.2 tons. This marks the first successful application of the "small wellbore dedicated tubing + top packing" integrated technology in this type of well, filling the gap in efficient sand control technology for
2026-3-13-
Chemical industry
The chemical industry is a large polluter because of its various types, complex processes, and diverse products, and the types, quantities and toxicity of pollutants discharged during production.
Oil and gas
With the increasing demand for oil and gas products around the world and the depletion of oil and gas resources, the collection, transportation and processing technology and requirements of oil and gas products become increasingly complex, costly and face more and more personalized technical requirements
Pharmaceutical industry
Pharmaceutical industry is an important part of China's national economy. It is a combination of traditional industry and modern industry, and one, two and three industries are integrated.
Metallurgical Industry
The valve used in iron metallurgy industry has strict working condition, poor sealing performance of valve, wear problem in production engineering causes pipeline aging and valve damage, which needs frequent maintenance and treatment. Therefore, due to the problems of short service life and high maintenance frequency of valve, it causes long shutdown time
Water treatment industry
The basic situation of water treatment industry, water resources is an important resource for human survival and social development. With the rapid development of China's economy, urbanization and industrialization process
Electric power industry
Electric power is a kind of energy which is powered by electric energy.Invented in the 1870s, the invention and application of electricity set off the second wave of industrialization