1. Size: 1/4" -28" (13.7mm-711.2mm)  
2. Wall thickness: SCH40, STD, SCH80, XS, SCH160, XXS etc.
3. Standard: ANSI, ASME GB, JIS, DIN, API
4. Material: ASTM A106/A53/API 5L Gr. B X42-60, 
ASTM A179, A192, DIN2448/1629, ST52, ST37, ST44 etc
5. Lengths: 5.8 meters for 20" container, 6 meters to 12 meters for 40" container
6. Packaging: In bundles, varnish coating, ends can be bevelled or square cut, ends capped.
7. Certificate: ISO 9001.2000, API, Mill Test Certificate
8. Applications range: Petroleum, Smelting, Foodstuff, Power, Papermaking, Chemical, Medical equipment, Aviation, Boiler heat,   Exchanger, Gas metallurgy, Shipbuilding, Construction, etc.
9. Others: Special design available according to requirement;
Anti-corrosion and high-temperature resistant with black painting;
All the production process are made under the ISO9001:2000