... .long life time 2.wear resistance 3.swift delivery 4.quality and quantity assured 5.100% virgin material About uswe are ... carbide no standard products, inserts, mining inserts, indexable inserts shims, drilling bits, drawing dies, cold forging dies, carbide bars, carbide rods ... , K05, K10, K15, K20,K30, P20, P40,etc. China good quality cemented carbide for rock drilling tools ( SGS approved )