Hardness of deposited layer: ≥65HRC

            Specification: It is a national patent product (the letters patent

            No. is ZL 02 2 70435.3) and one of the products of National S&T

            Effort Mainly Extend Program (the item No. is 2005EC000221). It is

            made of the composite wear plate. The performance benefit is long

            service life.