... Ya tools Co,Ltd. is a professional manufacturer of Cemented Carbide products.With years' experience,our products are CQC qualified and ... ...markets. Our main products include:cemented carbide drills,cutting cutters,mining tools,drawing dies,carbide strip,rods and so on.skillful workers ... grade are available too,such as K01,K05,K10,K15,K20,K30,P20,P40 etc. We offer all kinds of OPP ...