Diameter：Φ219mm-Φ2420mm

Wall thickness：6mm-22mm

Length：6m-12.5m

Steel grade：Q235B-Q345B、SS400、A、B、L290-L555（X42-X80）

Standard： ☆GB/T9711.1-1997 Grade A Part 1：Delivery condition for industrial steel pipe of petroleum and natural gas transportation，

　　　　☆GB/T9711.2-1999 Grade B Part 2：Delivery condition for industrial steel pipe of petroleum and natural gas transportation，

　　　　☆SY/T5037-2000 SSAW steel pipe for common fluid transportation SY/T5040-2000 SSAW Steel pipe for pile

　　　　☆CJ/T3022-93 SSAW steel pipe for city heat supply

　　　　☆API SPEC 5L Edition 43 specification for line pipe　　

Annual output：300000 ton

Surface anti-corrosion：Anti-corrosion coat for both sides available upon request;cement，asphaltum，epoxy resin，FBE，two-layer/three PE/PP