- Petroleum Drilling Tools -2
- 2016-11-06 09:52
- Our Petroleum drilling tools include Drill Collar, Heavy Weight Drill Pipe, Stabilizer, Kelly, Non-Magnetic Drill Collar
- 30CrNi2MOV Pump Forging
- 2016-10-31 21:04
- Material: 30CrNi2MOV / E4330 / 4330V Process: Forging, rough machining, heat treatmentSize: Width 200-1000mm, hight: 200