1. Commodity: hollow bar
2. Steel garde: SAE/AISI 1020,1026,1045,1518,1524,1541,4130,4140,4145,4340
3. Size range: OD of 500mm max, ID is not limited.
4. Manufacture method: Hydraulic cold drawn, hot rolled+deep hole bored, hot rolled+deep hole drilled
5. Delivery condition: As rolled, Cold drawn, Stress relieved, annealed,normalized.
6. Machining or turning as per drawing.
