Main performance index for Composite guide
Overall strength of extension ：450—500MPa
Thickness of abrasion-resistant alloy: In usual 5—8mm，the max thickness is 20—30mm
Rigidity of abrasion-resistant alloy: HRC55—63；
Shear strength of binding course: 450—480 MPa
Service life: it is 20-40 times higher than normal steel casting and cast iron.