Ss welding neck flange

• interpret seamless steel pipe
• Water pipeline - Handling and
• Applications of welded pipe pil
• welded steel pipes and Seamless
• ASTM A 106 Seamless Pipe
• Carbon dioxide resistant oil ca
• seamless steel pipe On-line col
• EN 10305-1 / DIN 2391 cold draw
• EN 10255 Standard Pipe,replaces
• API 5L A53 / A106 Grade B, Seam

• Inconel625 alloy pipe
• ASTM A199 / ASTM A213 T5 T9 T11
• galvanized seamless carbon pipe
• API5L steel line pipe
• ASTM A333 pipe
• P11 seamless alloy steel pipe a
• DIN ST52 seamless pipe
• ASTM/DIN carbon seamless steel
• ERW Welded Steel Pipe

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