... 2.wear resistance 3.swift delivery 4.quality and quantity assured 5.100% virgin material About ... products, inserts, mining inserts, indexable inserts shims, drilling bits, drawing dies, cold forging dies, carbide bars ... cutters etc. We have rich production experience and advanced production process to make any size according ... K30, P20, P40,etc. cemented carbide for rock drilling tools ( SGS approved )