• ASTM A105 ASME SA 105 Standard
• API 5L Grade B X42 X46 X60 X65
• interpret seamless steel pipe
• Water pipeline - Handling and
• seamless steel pipe On-line col
• EN 10305-1 / DIN 2391 cold draw

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