steel parts-butterfly valve

1).Materials: bearings steel, carbon steel, Chrome Steel; 
2).Tolerance: P0,P4.P5,P6;
3).Vibration: Z2V2, Z3V3; 
4).Radial Play (Clearance): C2,C0,C3,C4,C5; 
5).Brand: KDYD,KJYJ,KG,NSK,SKF,KOYO,FAG and so on.
6).Package: iron cage or per your requirement