1. Standard: ANSI, MSS, API, AWWA, DIN, JIS, BS and GB etc

2. Size (inch): 1/2~48

3. Thickness : Sch5~Sch160,XXS

4. Material: Carbon steel, Stainless steel and Alloy steel etc

5. Connection: Butt Welding

6. Usage: Petroleum, Chemical, Power, Gas, Metallurgy, Shipbuilding, Construction, etc

7. Packing: Wooden cases or Wooden pallet

8. Quality: ISO:9001: ISO2000-Quality-Systerm has been passed