product description:

Standard	Grade
API 5L PSL1	A,B,X42,X52,X56,X60,X65,X70,X80
ASTM A53/ASTM SA53 ASTM A106/ASTM SA106	A,B,C

Outer diameter (inch ):1/4’’---18’’ Thickness (mm):2.24---45.24 Length （m）:1---12m The section shape:round Country of origin:China(Mainland) Provinces :Tianjin Application:Structure Pipe,petroleum,natural gas,drilling,pumping and other fields. Certificate:CE Whether the alloy:Non- alloy Factory :yes

Product display:

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 photo :

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.