factory price erw cold rolled pre galvanized gi pipe in China Dongpengboda

详情

Product Description:
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.
Product Feature:
 we can produce different types of steel pipes and the length is controllable. Besides, we have advanced technology and equipment controlled by computer, which can customize the length of steel pipes according to the customers requirements. In terms of galvanized steel pipes, the length we can produce is ranging from 3 to *6 meter while the length of black steel pipes is from 4.5 to *6 meter. The common lengths for galvanized steel pipe are 3.*5m, 3.*5m, 5.8m,*2m, 7.3m,6m etc. As to black steel pipe, the common lengths are 4.5m,5.8m,6,9,*2 etc. Generally speaking, allowable length tolerance is about ***0mm using fixed length saw. The tolerance can be controlled under 5mm with the process of second saw cutting. Notably, the tolerance is even around ±1mm through the tool of small saw with below **0mm diameter.
Product Specification/Models:
product range: *6mm***9mm,WT:0.6mm*3.0mm
Application:
 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.
Other Information:
Contact us:
Tel/Whatsapp: *************2
Payment:
T/T L/C