Limestone Quarry Plant

One of the Top 500 enterprises in China foreign trade

QCCO was approved as a member of “China Association for Contracting Projects Abroad “and granted a membership certificate on Sep 28,2005; “Credibility Rating AAA certificate in Foreign Trade” was granted to QCCO by China Shippers’ Association


General Structure Pipe


General Structure Pipe


API 5L Specification for Line Pipe

API SPEC 5CT, Specification for Casing and Tube

GB/T3087 Steel Pipe of Low and Middle Pressure Boiler

GB/T8162 Steel Pipe of Steel Structure

GB/T8163 Steel Pipe of Fluid Transportation

The pipes also can be produced accouding to customers requirments.


Q235, Q345,10#45#, A25X70 Hot rolled coiled steel.

The pipe also can be produced according to customers requirements.

Outer Diameter:





8000mm-12000mm or according to cusomers requirments.


1. Bundle packing.

2. Bevelled end or plain end or warnished as per buyer's requests.

3. Marking: as per customer's requests.

4. Painting varnish coating on the pipe.

5. Plastic caps at ends.


1. Low and middle pressure fluid transportation pipeline

2. Casing Tube

3. Boiler Pipe

4. Petroleunm and natural gas industry

5. Chemistry industry

6. Electric industry

7. Drainage project, City construction

8. Low and middle pressure boiler pipeline,etc.


 O.D.×Wall Thickness(mm) 

 O.D.×Wall Thickness(mm) 



























At last, we sincerely hope that we could establish long term business relations with your esteemed company. And your specific inquiry will be highly appreciated!

Welcome every buyer contact with us.

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