1. No oxide coating on ID & OD
2. No leak under high pressure
3. High precision
4. High degree of finish
5. No deformation after cold bending
6. No crack after flaring and flattening
7. Complicated geometrical forming and machining
Executive Standard: GB/T8163, DIN2391/DIN2393, ASTM A519, EN10 305-1/EN10 305-2
Size: OD:∮50-300mm WT:5-30mm Length:≦13m
Application: Hydraulic cylinders
Supply Ability: 800-1000 tons per month