Welded Steel Pipe Q235

The product description:
Wall Thickness 0.6mm--20.0mm
Length 1--12mAccording to customer requirements ...
Outer Diameter (1/2'')21.3mm---(16'')406.4mm
Tolerance Tolerance based on Thickness:±5~±8%  /According to customers requirements
Shape Round
Material Q235B,Q345B 
Surface treatment Corrosion protection,
factory  yes
Standard GB/T3091-2001,BS1387-1985,DIN EN10025
Certificate ISO,BV,CE,SGS
Payment terms 30% deposit then pay the balance after received the B/L copy 
Delivery times 25days after receive ur deposits
  1. Through a bundle
  2. According to customer’s requirement
Loading port Tianjin/Xingang

customer's benefit:

 What benefits do customers get:

1.we are factory .( our price will have an advantage over trading companies.) 2.Don't worry about the delivery date . we are sure to deliver the goods in time and quality to achieve customer satisfaction  Product 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   Customer photos :
The customer purchased steel pipes in our factory. After the goods were produced, the customer came to our factory for inspection. 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 . Produce products :

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