Stock: the size of the head, pipe, butt size head Hongyuan tube industry (Contact: Wei Hongmei Tel: 15831789812 18713666562) Cangzhou Hongyuan Pipe Industry Co., Ltd. is a steel sales and pipe fittings production as one of the major integrated enterprises. The company is located in the pipeline equipment industry in China to create - Hebei Enzan. The east Bohai Huanghua Port, north of Beijing and Tianjin, the environment and convenient transportation. The company mainly engaged in pipes of various materials: 304,304 L, 316,316 L, 321,310 S ,18-8, 16Mn, 20 #, 20G, 12Cr1MoVG, P91, 10CrMo910, 15CrMo because we are specializing in the production, quality assurance that the The company has advanced production line, is a professional manufacturer of high production, low pressure elbow, pipe tees, elbows, flanges and pipe factory chemical design and preparation. At the same time, the company also produces wear-resistant, anti-corrosion, insulation pipes, soda, pipe supports and hangers, as well as power plant accessories and other products. Is widely used in petroleum, chemical, electric power, construction, metallurgy, water conservancy and other large-scale projects. Diameter pipe, also known as the size of the head. Chemical one of the fittings for the connection of two different diameters. Is divided into Concentric and eccentric. Diameter pipe materials including stainless steel pipe reducer (304304l316316l), alloy steel, carbon steel size head diameter pipe, pipe 20 steel q234q345. The diameter pipe Standard GB ANSI British standard and non-standard high pressure stamping plate system should be consistent with the current national standard steel butt welding pipe fittings "GB/T13401-2005 provisions diameter pipe standard diameter pipe quality without seam pipe GB / T 12459-2005 Ministry of Electricity Standard GD0506-0507 national standard (GB/T9112-2000) standards of the Ministry of Machinery (JB81-59 JB/T74-94) Petrochemical Standards (SH3406-96) Ministry of Chemical Industry standards ( HG5010-58, HG20592-97)