1. Axle body and axle head are integrated not by welding but by high temperature extrusion. 2.The brake lining has high performence,non-asbestos,non-pollution,and long use life,for easy checking and replacing. 3.We use famous brand grease ,which can provide high lubricating performence and protect bearing well. 4.The bearing is adopted from the domestic top brand bearing,with the advantages of over loading capability,high rotating speed,good intensity,abrade resisitant and heat resisitant. 5.Bolt are made of alloy material which has the capability of high intensity well strength and bends intensity. 6.The axles designed as per international standard,ABS systerm is alternative,which can provide firm protenction for the axle.