Hydraulic cylinder tube

1. Hydraulic cylinder tube 2. Standard&material: GB/T8713 20#,45#,25Mn,27SiMn,30CrMo,40CrMo, DIN1629 ST52,DIN2391-2 ST52.3, ASTM A519 SAE1020,SAE1045,SAE1026,SAE4130,SAE4140, EN10305-1 E235,E355,42CrMo4,etc 3. Manufacture method: Cold drawn 4. Internal surface treatment method: honing or skiving&roller burnishing 5. ID tolerance: H7,H8,H9 6. Roughness of internal surface: 0.2um-0.4um 7. Straightness of tube: 0.5mm/1000mm 8. Standard packing:in bundles tied with steel strips. Slightly oil coating on both internal&external surface for anti rust protection. 9. Port of loading: Shanghai Port,China. 10. Origin: China. 11. Other terms&conditions to be ocnfirmed.