1)PTFE solid ball used in chemical, machine, etc 2)diameter:60mm 3)material:PTFE PTFE Solid Ball: ... bag1. The PTFE solid ball can be used in chemical, machine, electrical equipment,aviation, metering pump, etc2. Hollow ball ... can be 0.01mm with good surface and precision.2) Our products are mainly sold to European and American ... competive price! Please feel free to contact us! 2.36" PTFE solid ball