Diameter pipe materials including stainless steel diameter pipe (304 
 304l 316 316l), alloy steel, diameter pipe carbon steel the size of the first steel q234q345 diameter pipe on the 20th. Diameter pipe Standard: GB, American Standard, British Standard and the kinds of non-high-pressure stamping. Diameter pipe quality should be consistent with the current national standard steel welded Reducing the possession of "GB / T 
 The 12459-2005 provisions diameter pipe roundness should not exceed 1% of the OD of the corresponding side, and the allowable deviation of ± 3mm; diameter pipe size tolerances shall comply with the provisions of Table .2.2-3. Diameter pipe to perform SY/T5037, GB/T9711, GB/T8163, American Standard ASTM 
 A106/A53 GRB, API 
 5L, APT5CT the ASTM A105, the ASTM A234, ASTM A106, DIN German standards and customer standards. The production of seamless diameter pipe size head diameter pipe is used for pipe reducers at a pipe. Forming process commonly used to suppress necking, suppression of expanding or shrinking diameter plus expanding suppress diameter pipe can be applied to certain specifications stamping. 
 forming, the necking diameter pipe forming process is a reducing / expanding into the forming die with equal diameter pipe big end diameter tube along the tube axial direction to suppress the metal along the mold The chamber movement and contraction forming. Welcome new and old customers come to order! 

 Changzhou Huayi Pipe Industry Co., Ltd., located in China Elbow 
 Pipe "- Hebei Cangzhou. East of Bohai Bay of Huanghua Port, north of Beijing and Tianjin, the superior environment and convenient transportation, is emerging a pipe equipment for comprehensive enterprise's goal is to focus on domestic and foreign petrochemical , electricity 
 Power, chemical industry, metallurgy field, process piping and equipment design, research and development. Has CSPC (BSF), Nanjing Young Pakistani, Beijing Electric Power Construction, Sinopec Corporation, five companies, 10 companies, thirteen of the built supporting capacity 
 Products. The company has 3 senior engineers, and the domestic part of the Design Institute jointly develop new products, training mid-level technical management staff of 30 people. Supporting the production line 9. Can be forged, the push system, simmer, pressing, welding, heat treatment. With chemical analysis, physical testing, radiographic testing, ultrasonic testing, magnetic particle coloring, advanced detection means, provide an effective guarantee for product quality. The quality policy of the company adhere to the "scientific management, genuine high quality, the pursuit of perfection, serve the people, contributing to society" and "customer supreme, reputation is golden and warm service, respond quickly," business philosophy, perfect network marketing system.