Item No.: SI5C~SI30C, SI15ET-21RS~SI80ET-2RSBody: Carbon steel, Zinc plated, chromate treated SI..C: Mounted with GE..C type of radial spherical plain bearings Sliding contact surfaces: Steel/PTFE compositePhone: +86-592-580 8851 / +86-592-580 7618Email: sales@ldk-bearing.com ; benjamin@ldk-bearings.com