This is hicoo tungsten carbide products co。，ltd Our company offers oil drilling tips, These kinds of tips are using for Oil Drilling, Coal mining bits, salt mining bits, mining bits etc And there are many types, For Example: Type HCE\Type HCP\Type HCQ\Type HCQ-1\Type HCS\Type HCZ\Type HCZ-1\Type HCZ-2 and so on. What抯 more, different type can be designed according to the customers requests. Our company is a special Tungsten and Tungsten Carbide manufacturer and supplier in the Chinese Mainland. Our products include all sorts of primary, semi finished and finished tungsten, (Tungsten Bar / Rod / Block; Tungsten Alloy Billet / Barrel; and Cutters), the main products we offer to our oversea clients are the Tungsten Carbide Rods (Extrusions or Press). If you would like to learn more information about my company, please check It is always in the mind to offer our best service to any client at any time