About Us
Zhejiang Yongsheng Flange Co., Ltd. is a specialized manufacturer integrating research and development, exploration, design and engineering, manufacturing, and trade of various pipeline flanges and fittings, including stainless steel flat-welded steel flanges, stainless steel flanges, stainless steel flange plates, stainless steel flange covers, stainless steel blind flanges, forged stainless steel flanges, butt-weld flanges, necked butt-weld flanges, necked flat-weld flanges, flat-weld flanges, custom flanges, wholesale custom flanges, wholesale flanges, flange plates, flange covers, threaded flanges, forged stainless steel flanges, non-standard large-diameter flanges, non-standard flanges, and non-standard forged flanges. Our company has been in operation for many years and boasts strong technical capabilities, as well as sophisticated CNC lathes and advanced testing equipment, laying a solid foundation for producing high-quality products. Over the years, our products have been marketed nationwide and exported to countries across Europe and the U.S., the Middle East, Africa, Southeast Asia, and other regions.
Our company’s products are manufactured in compliance with standards including GB12459, SHJ, HGJ, ANST, JIS, DIN, and ISO. Our product range includes flat-welded steel flanges, lug-type butterfly valve flanges, raised-face flat-welded flanges, and non-standard flanges made from special materials. We also offer concave-convex flanges, as well as flanges conforming to American, German, Japanese, and Chinese national standards. Custom-made non-standard flanges can be produced according to customer-provided drawings. The primary materials used in our products include special-grade steels such as 321, 304, 304L, 316, 316L, 2520, and 904L; as well as various chromium-molybdenum steels, duplex steels, and heat-resistant steels like 310S, 329, 317, F321, and F347. Our products are widely used in industries such as petroleum, chemical engineering, food processing, metallurgy, construction, and power generation. Nominal diameters range from DN15 to 6000 mm.
With our advanced management system, excellent quality services, and continuous efforts to enhance our own product quality standards, Yongsheng is committed to challenging the market with superior products, higher quality, and more competitive prices. We sincerely look forward to establishing sincere partnerships with business friends both at home and abroad. We welcome your messages or inquiries regarding the prices of stainless steel flanges—your call is warmly anticipated!
Company Culture
01
Entrepreneurial Spirit
Unity, Dedication, Innovation, and Struggle
02
Corporate Philosophy
Forge an internationally renowned enterprise and achieve lasting success for a century.
03
Corporate Values
Pioneer and innovate, and once again reach new heights.