cutting edgesa. material: alloy steel, carbon steel, stainless steel,b. property: with excellent wear resistance, good impact ductility and temper resistance.c. for brands: Caterpillar, Komatsu, ESCO, JCB, Hyundai, Daewoo, Hitachi, Liebherr, Kobelco,Case, Hensley, etcd. OEM: make as clients samples...