Dear Sir, Glad to know that you are involved in oil gas drilling industry. We are specialized in supplying cemented carbide wear parts, widely used for downhole drilling tools, measurement tools, flow control of petrochemical industry etc. Below are our regular products for your reference. The customized size is also available. *Nozzles for PDC/Roller Drill Bits * MWD & LWD Tools *Valve Ball & Seat *Tungsten Carbide Buttons If any inquiry, feel free to send us. We will quote the best price and delivery.