The company is a Taiwan-funded enterprise, established in 199 1. The company (group) covers an area of 36000m2 and employs 550 people (including 6 senior engineers, 48 professional design engineers and 0/6 quality assurance engineers). Products are exported to the United States, France, New Zealand and Southeast Asia. Guanlong company absorbs the advanced production technology and management experience of its parent company and cooperates with internationally renowned valve manufacturers for a long time. Now we mainly produce various hydraulic control valves, exhaust valves, check valves, butterfly valves, emergency cut-off valve and other products. Among them, the silent check valve mainly cooperates with Mandemag Company in Mannes, Germany, and the flange butterfly valve introduces Hartmann technology from the United States. Guanlong Company passed 1999 ISO900 1 international quality certification, 2006 ISO 14000 environmental quality system and British WRC certification. Changjiang Daily and other media gave a special introduction to Guanlong Company and its chairman, Mr. Li. Shanghai Guanlong Valve Machinery Co., Ltd. began to explore the mainland market in April 1995. Since its establishment, the company has obtained many certificates and honors such as ISO900 1, ISO 1400 1, Shanghai famous trademark, product recommendation certificate of the Ministry of Construction, ce product safety certification in Rheinland, FM fire protection product certification in the United States, and WRC product hygiene certification in the United Kingdom. The company produces more than 30 categories and more than 6,000 varieties of butterfly valves, soft sealing gate valves, exhaust valves, silent check valves and sludge discharge valves, among which the largest specification is DN3000, weighing 18 tons. Due to advanced technology, reliable quality and complete specifications, our products have been widely used in many key projects in China, such as Oriental Pearl TV Tower, Three Gorges Project, Xiaolangdi Project, Pudong International Airport and other thousands of customers. Some products are exported to Germany, USA, Hongkong, Taiwan Province and other places. At the same time, the company has set up more than 50 offices all over the country, forming a nationwide sales and service network, which is well received by users and is a well-known brand in the industry. Excellent product quality and perfect pre-sales and after-sales service make the company widely praised by users, and will continue to open up more living space with first-class products and first-class services.