The product description：

Product detail :

Thickness	Length	Diameter

gi pipe  zinc coating	HDG pipe Zinc coating	diameter detail

Different from other factories：

    1.we applied for received 3 patents .(Groove pipe ,Shoulder pipe,Victaulic pipe )

    2. Port : our factory just 40 kilometers from Xingang port ,is biggest port in the north of China .

    3.Our manufacturing equipment include 4 pre-galvanized products lines,8 ERW steel pipe product lines,3 hot-dipped galvanized process lines.

Packing and transport:

 Customer case：

   Australian customer purchase powder coating pre galvanized steel square tube. After customers receives the goods for the first time . Customer tests adhesive strength between the powder and the surface of the square tube .Customers test powder and square surface adhesion is small . We have meetings with customers to discuss this problem and we do tests all the time . we polished the surface of the square tube . Send the polished square tube to the heating furnace for heating . We tests all the time and discuss with customer all the time . We keep finding ways . After many tests, the final customer is very satisfied with the products. Now customer purchase a large number of products from factory every month .

Customer photos :

The customer purchased steel pipes in our factory. After the goods were produced, the customer came to our factory for inspection.