Q345B black steel square pipequare pipe  

1. Outer diameter: 10-500mm

2. Wall thickness: 0.8-25mm 

3. Length: 1-12m

4. Standard: GB,ASTM,JIS,DIN,BS,EN

5. Steel grade: Q195, Q235,Q345,45#,20#,ASTM A106 GRB

6. Packing: in square bundles or as customer's requirement

7. Zinc coated:200-400 g/m2 

8. Process method: cold drawn, high frequency welded.

9. Application: Widely used in construction structure,  machinery,conatiner,furniture structure,electuromechanical hardware,airport structure. 

10.

1). Special design is available according to requirement.

2). Anti-corrosion and high-temperture resistant with black painting

3). All the production process are made under the ISO9001:2000 strictly.

square pipe  

Q345B black steel square pipe sizes

square pipe  

Q345B black steel square pipe

Q345B black steel square pipe

square pipe  

Q345B black steel square pipe

Q345B black steel square pipe

square pipe

square pipe

Q345B black steel square pipe

square pipe

Q345B black steel square pipe

Enterprise business license

Trade  team and office

square pipe

square pipe

square pipe  

square pipe

Ruiguo Tongsheng IMP.&EXP. Co., Ltd. have a registered capital of US$ 50 million.
Our company is engaged in the production and trade of iron ore powder, coke, coal, billet steel, strip steel, section steel, steel plate, screws and all kinds of finished products. 

steel tube is our mean production and sell well, We have established business relationships with clients in the United States, Japan and other 10 countries and regions. Annual sales revenue is RMB10 billion.  

The details of payment method ,delivery time and mininum quantity and so on can be negotiated according to order. 

square pipe

square pipe