- Seamless steel use for convey fluid factory outlet
- 2017-12-25 16:21
- Model Number: 18*2-3-4-5 Key Specifications/Special Features: Key specifications:1.Standards: GB/T8162-2008, GB/T8163-2008, GB5312-19992.Materials: 20, Q345, 20#, 45#, 20Cr, 40Cr, 20CrMo, 42CrMo, 360, 410, 4603. Outer diameter range: 21-1219m4. ...