We produce welded steel pipe both on square pipes and rectangular hollow sections. The welded line can be controlled with our precision instrument in the fitting place.
After many years of hard work, we have formed about 22 steel pipe production lines as well as thousands of moulds, about 1216 sets. With that well-appointed equipment and moulds as well, we can provide customers with different kinds of products matching with diversified customization. Our moulds are designed for specific specifications with high technology. For example, we can make elliptical tube, bread pipe as well as quincunx pipe accessible.
We have kept a long-term partnership with a few well-known steel manufacturers for many years. Raw material source is stable, and the quality is guaranteed in the production for our steel pipes: ERW pipes, hot dipped galvanized pipes, rectangular and square pipes, GI hollows, pre galvanized pipes, spiral steel pipes etc.
It’s easy to understand the steel or steel pipe price is calculated by the actual weight, and for some fixed size, the weight is related to the thickness of the pipes or coils. And for most the steel pipe or steel coils production, there will be tolerance, which means the final thickness or weight may be a bit difference than the original calculation as the final thickness changed a bit due to the tolerance. There is tolerance for the raw steel coils, and for the steel pipe factory production, they also have the tolerance as per standard.
Dong Peng Bo Da is one leading manufacturer for the hot rolled rectangular and square pipes, also for ERW pipes, GI steel pipes, SSAW steel pipes etc. Our RHS/SHS steel pipes the OD sizes from 15*20mm to 400*600mm/15*15mm to 500*500. And the thickness from 1.0mm to 17.5mm. The standard we can do: ASTM A500, EN10219, EN10210, GB/T6728, AS 1163, JIS G 3466 etc.
There are many differences between the pre galvanized pipes and hot dipped galvanized steel pipes. Many customers have doubts about the two types and here we make some explanation about how we choose the type we need for our work or project.
COMPANY：DONG PENG BO DA(TIANJIN) INDUSTRIAL CO.,LTD.
Contact：Mr. Chelin Liu
Phone：+86-13920881491
Email：chelinliu@gmail.com chelinliu@126.com
Add：No.2208, Meiyuan Road 5, Nankai District, Tianjin, China.