Our company bearing’s material used are chrome steel and carbon steel.The tapered roller bearings are: single row,double row,four row and Inch non-standard bearings; Deep groove ball bearings seal types are:open,2RS,ZZ and 2RZ etc.The precision level is P0,P5,P6.In addition,our company has the copy of all kinds of imported bearings.mobile:+86 18866547029 weichat:18866547029 whatsapp:18866547029