Place of Origin : Chengdu,China
NOV(National Oilwell Varco) bits
If you are an expert of drilling tools, there is no doubt you know National Oilwell Varco (NOV).We are proud and glad to be the provider of the Brand of National Oilwell Varco(NOV), because National Oilwell Varco (NOV) offers the world's most reliable and all kinds of drilling tools and enquipment for today's complex drilling programs.