Enzan the alloys size of the first processing, Hongyuan carbon steel head size, Cangzhou Hongyuan Pipe Co., Ltd. (Contact Person: Feng, Hongmei Contact: 15,932,713,817 QQ: 1763757819) specializing in the production of alloy size head, Concentric, eccentric head stainless steel size head, carbon steel size head. The size of the head into Concentric and eccentric size of the first two. The size of the first materials including stainless steel size head (304304l316316l), alloy steel, carbon steel head size, the size of the first made of 20 steel, Q235, Q345, 16Mn. The size of the first standards: the GB American Standard British standard and non-standard products. Ministry of Electricity Standard GD0506 to 0507 the supporting pressure vessel flange, tube plate corresponding standard: JB/T4700 ~ 4707-2000 implementation of national standards (GB/T9112-2000), Department of Mechanical standards (JB/T81-1959, JB/T74- 1994), petrochemical Standards (SH3406-1996), marine standards GB/T10752-1999, Ministry of Chemical Industry Standard (HG/T5010-1958, HG/T20592-2009). Export forged steel flange material ASTM A105 standards in accordance with the United States. Widely used in the chemical industry, construction, water supply, drainage, oil, light and heavy industrial, refrigeration, sanitation, plumbing, fire protection, electric power, aerospace, shipbuilding and other infrastructure projects. The Company has strong technical force, advanced testing equipment, and has a non-destructive testing laboratory, using advanced cold forming and thermal processing production technology, with advanced production equipment, professional technical staff to ensure the reliability of the product quality. The company of "customer first, reputation first, quality and price Shuangyou, courteous service" for business purposes, to ensure the best quality and the lowest price, best service, We sincerely welcome old and new customers and we have established long-term stable relations of cooperation, create brilliant tomorrow!