... ,JIS,DINMaterial:20#,Q235,GR.B,X42,X56,P11,ST37,ST45.8,ST52,S235JR,STP40Packaging:painting black, pipe cap, steel strips bundled.Applications:Petroleum ... . Steel pipe3. Pipe making machinery4. Stainless steel pipes fitting5. Seamless steel pipe6. Carbon steel pipe7. Square steel pipe8. Galvanized steel pipe9. Weld steel pipe 10. Spiral steel pipe11. Large diameter spiral steel pipe ...