drilling bit उदाहरण वाक्य

On the other hand, it said, many new technologies developed with federal support, ranging from energy-efficient windows to extremely durable drilling bits for oil and gas wells, have produced billions of dollars in gains for energy producers and consumers alike.
In a written opinion, the judge said the government had failed in five weeks of testimony to prove that GE had conspired with a representative of the De Beers diamond cartel of South Africa to fix the price of industrial diamonds, which are used in precision-cutting machinery and drilling bits.