Product Features1.Abrasion resistance, rust resistance (S136)2.Vacuum treatment, balanced hardness (HRC 56-58)3.High concentricity, (single piece <=0.003mm, combined pieces of post and brushing <=0.008mm)4.Easy to assemble, high precisionWe are the company only focus on round locating unit and quick couplingPlease get in touch for more informationÂ