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 |
Product display:
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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 :
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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.Produce products :
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