- hot rolled grinding steel ball for mining industry
- 2016-11-03 06:13
- Feifan is accredited by ISO9001, ISO14001, SA8000 and OHSAS 18000.Our balls are used to assist in the extraction process
- hot-rolled grinding steel ball
- 2016-10-25 05:13
- Hot-rolled steel ball :DIAMETER20-125MMHARDNESSHRC50-65IMPACT VALUE=12J/cm2FALLING -BALL IMPACT TEST=30000timesPACKAGEWo