Ningbo resistance, is one specialized is engaged in the superhard materials (such as natural single crystal polycrystalline) diamond cutting tool design and production and sales for the integration of high-tech enterprises materials are selected from American GE company and the British debaress company, can be customized according to customer requirements, product after-sale to provide professional technical support; Companies invest a lot of money, the introduction of domestic and foreign advanced production equipment, has experienced machinery and electronics, welding management professional quality technical staff we developed products are widely used in aerospace automobile mould machining clock electronic biological engineering fields such as steel, superior performance and reliable quality, our products well received by the majority of users