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

 
 

ASTM A106/A53GR.B Large diameter thick wall steel pipe


上一篇:CE Certificate alloy seamless steel pipe

下一篇:21-610mm LSAW welded pipe