Shanxi dingxiang thriving industry iron forging factory is located in the hometown of China's heavy chemical base in northwestern Shanxi Province forging dingxiang territory, railway transportation is convenient, coal, electric power, rich resources, advanced communication facilities and quick, is extremely advantageous geographical environment. Our factory has from the forging, heat treatment, machining, physical and chemical inspection, surface treatment to the packaging shipped's ability to implement the integration of production, strong financial strength, solid technical strength, advanced production technology, complete quality testing and reliable after-sales service, good corporate reputation, all over the world and domestic numerous customers provides a solid foundation for cooperation.
National standard of the flange of the another meaning is: according to the national standard size and tolerance range flangeDifference in production is not according to the standard size of flange is also called second standard flange (someone called non-standard flange is not correct), usually some unscrupulous merchants will reduce two flange thickness, diameter size to achieve the purpose of saving material, and made from scrap steel and scrap steel flange, is usually the steel chemical composition and mechanical properties of substandard waste, moreover steelmaking production flange with black steel private, the private steel steelmaking technology using old, there is no guarantee that the mechanical properties and welding performance, use which may not be able to and steel pipe welding, such as cracks, porosity or steel itself will leak after welding. So try to choose when buying a flangeNational standard of the flangeIf the limited funds to choose two standard flange must be carefully observed and measured under the condition of flange dimensions so as not to fall for it.
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