we can supply spiral steel pipe,219mm-2020mm,welcome you to come here.material Q235 Q345,GB9711.1-1997.[...]

we company produce a big quantity of welded pipe,can make sure the quality,and also the material is Q235 Q345,welcome you to come here.[...]

we can supply seamless steel pipe,GB/T8162-1999,GB/T8163-1999,GB/T3087-1999,welcome you to visit me.we will give you a good price.and good service.[...]