Yanshan County Bo Yan Pipe Co., Ltd. is located in Yanshan County Industrial Development Zone. North of Beijing and Tianjin and Beijing-Shanghai railway to the east Bohai Sea, Tianjin Port, State Road across the county superior geographical conditions of carbon steel flanges, abundant local resources steel pipe flanges, for my company's development has laid a good foundation. Best-selling products, and exported to South Korea, Vietnam steel flange specifications, Singapore, Malaysia and other countries. Carbon steel flanges close and reliable. It has two sealing surface, and valve sealing surface material widely used kinds of plastic, sealing, and can be completely sealed. Because carbon steel flat welding flange wiping of carbon steel flanges in opening and closing process, it can be used with suspended solid particles in the medium. Model Q41F - 16C Q41F - 25C ASTM A105 about 0.9% (standard is 1.05Max with decreasing carbon content can to 1.65% Max) As GB 16Mn content in about 1.3% (standard 1.2% to 1.6%), JIS S25C then it is relatively low at 0.6%. My company is willing to preferential prices, reliable quality, advanced technology, good service and excellent work ethic, dedication and cooperation between domestic and foreign customers, and work together to create brilliant! We sincerely welcome new and old customers to visit and inquiries, call to discuss the order. Yanshan County Bo Yan Pipe Co., Ltd. The company mainly produces steel seamless pipe fittings, steel seam pipe fittings, forged fittings, flanges and other forged products pressure piping components, products widely used in petroleum, petrochemical, power, supply hot, shipbuilding, construction, oil and gas industry, selling 29 domestic provinces, municipalities and autonomous regions, and exported to the US, Singapore, Iran, Pakistan and other countries and regions, it is the focus of pipe production Sinopec, PetroChina, CNOOC, the state electricity and other units suppliers. Weld neck flange means with neck and having welded pipe connected with the pipe flange transition, with neck butt flange suitable for pressure or temperature fluctuations pipeline or high temperature, high pressure and low temperature pipes, but also for transport is expensive, pipeline flammable, explosive media. Weld neck flange distortion, sealed, and widely used, PN at about 16MPa. Advantages: 1, connecting pipes and pipe sealing performance can be maintained. 2, easy to replace certain pipeline. 3, easy to open inspection line situation. 4, to facilitate the closure of certain pipeline. Carbon steel flanges wholesale, Bo Yan Pipe (online consultation), carbon steel flanges provided by the Yanshan Xian Yan Bo Industry Co., Ltd. Yanshan County Bo Yan Pipe Co., Ltd. (www.czbygy.com) Hebei Cangzhou, elbow leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Bo rock pipe industry leadership with the staff warmly welcome all inquiries negotiations to create rich rock pipe industry a better future.