1. Commodity: Hollow bar

2. Steel Grade: AISI 1020, AISI 1026, AISI 1045, AISI 1518, AISI 1524, AISI 1541, AISI 4130, AISI 4140, AISI 4145,AISI 4340, AISI 8620. 

3. Size range: OD of 500mm max, ID of 5mm-400mm. 

4. Manufacture method: Hydraulic cold drawing, Hot rolled+deep hole bored, deep hole drilled.

5. Delivery Condition: As rolled, Normalized,Quenched+Tempered.