As we have a process of welding when manufacturing, the surfaces of steel pipe may be not flat which can not meet the construction industry standards. In order to produce practical products, flattening weld joint applied to round steel pipes and square steel pipes is crucial to the overall manufacturing process. Our small steel pipes can be inserted in large scale pipes, besides, our steel pipes are equipped with other accessories as it seeks to prevent wires from scratching when threading. In addition to flattening inside or outside weld joints, we can also ensure the surface is glossy with solid structure. 

Our products all have pretty physical appearance with smooth outside welding. Compared with some other suppliers, we use a flat knife for scraping the weld line. Besides, the visual weld geometry size is in line with the actual requirements of different applications. On the other hand, tube shape mutation is easy to cause stress concentration. If the excess part of the welding is polished off in the pipe production process, this will somewhat eliminate part of the stress concentration. In addition, our workers are all skilled in the post treatment of pipes, who all have excellent professional experience for many years. 

We produce welded steel pipe. The weld line can be controlled with our precision instrument in the fitting place. For rectangular steel pipe, the weld line will exist in small sides in order to stand heavy weight. Customers who request factories produce rectangular steel pipes with weld line in small sides may have a project for steel doors or windows. Because the surface of big sides may be not even if it has weld line, that is not beautiful. Of course, there are no special requirements for round steel pipes weld line. Our professional degree can be illustrated by weld line control.