Taiyuan Huaxin Cheng Electrical Equipment Co., Ltd. is a high-tech enterprise specialized in the design, development and manufacture of welded pipe equipment, spiral welded pipe equipment, cold-formed steel equipment, sheet and pipe finishing equipment and high-precision slitting line equipment. Taiyuan Huaxin Cheng electromechanical equipment to introduce you to spiral welded pipe mill diameter spiral welded pipe mill knowledge nominal diameter galvanized steel post 100MM 102 * 5108 * 5 and other several, thermal expansion pipe nominal diameter and its inner diameter, outer diameter are are not equal. 108 is the tube diameter, wall thickness of the pipe 5 represents, therefore, the inner diameter of the steel pipe is (108 * 5-5 = 98MM but not exactly equal to twice the wall thickness of the pipe diameter minus the difference Longitudinal unit, zinc and zinc - aluminum alloy coated steel products for surface protection, developed countries have reached 30 to 40% of the country's steel production is currently only 10% can be said, is close to the nominal diameter of the inner diameter, but not equal to the inside diameter of a pipe diameter specification name Longitudinal unit manufacturing, design drawings so use the nominal diameter, the purpose to be determined according to the nominal diameter of the pipe, fittings, valves, flanges, gaskets and other structural dimensions and connection size, nominal diameter DN using symbols said outer diameter spiral welded pipe mill in the design drawings if said, it should also make the pipe specifications table, show the public some pipeline nominal diameter, wall thickness thermal expansion pipe is a hollow section, no seams around the long strip steel. Shanxi Xin Hua Xincheng existing workshop area of ??6,500 square meters, 700 square meters of office space, has been put into use. "Huaxin Cheng," The new design center and a strong manufacturing system, a total of independently owned 2 The main processing area and an assembly plant, where plant building area of ??10,000 square meters Longitudinal BIDDING, assembly plant covering 6,500 square meters, an area of ??2460 square meters Design Center Longitudinal unit production, total manufacturing capacity of 1.8 one hundred million yuan. The new plant is equipped with 200 landing boring body, gantry five-sided, drilling and several sophisticated CNC machining equipment 10 sets per year. Longitudinal unit pricing, Huaxin Cheng electromechanical (certified), Mysore straight seam pipe unit is provided by the Taiyuan Huaxin Cheng Electrical Equipment Co., Taiyuan Huaxin Cheng Electrical Equipment Co., Ltd. (www.tyhxc.com) is Jinzhong, other leaders, over the years, the company is implementing the scientific management, innovation and development, honesty trustworthiness policy, and satisfy customer needs. In Huaxin Cheng electromechanical leadership with the staff warmly welcome all inquiries negotiations to create a better future for electromechanical Huaxin Cheng.