1. Size: 1/2 to 64 inches
2. Standard: ASTM, ANSI, DIN, GB, JB/T, JIS, API
3. Wall thickness: SCH20 to SCH160
4. Material: Stainless steel (316Ti, SS304, SS316, SS304L, SS316L, 321), carbon steel (A105/RST37.2/C22.8/Q235), alloy steel (A182F5, A182F11)
5. Quality control: ISO 9001: 2000
6. Application: Natural gas, petroleum, chemical industry, electric power, metallurgy, thermodynamic fields, water supply engineering, steam heating, hydroelectric power station and long pipe line transportation projects
7. Certification; ISO, API